identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03BC87EFE8358B2E0A09FC51FC45FBBE.text	03BC87EFE8358B2E0A09FC51FC45FBBE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona confine Hale 1925	<div><p>1. Argathona confine Hale, 1925.</p> <p>Albany Passage, Queensland, Australia; ‘taken in a Comatula ’; 0–30 metres. Supplementary figures given by Delaney (1989, figure 9).</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09FC51FC45FBBE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0A09FBD1FADEFB3E.text	03BC87EFE8358B2E0A09FBD1FADEFB3E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona crenulata Bruce 1982	<div><p>2. Argathona crenulata Bruce, 1982b.</p> <p>A small species (up to 7.5 mm) with dorsal nodules on the posterior pereonites and pleon. Known from Halifax Bay, Townsville, Queensland; depth of 8 meters.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09FBD1FADEFB3E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0A09FB51FB07FADD.text	03BC87EFE8358B2E0A09FB51FB07FADD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona hirsuta Hobbins & Jones 1993	<div><p>3. Argathona hirsuta Hobbins &amp; Jones, 1993.</p> <p>Central Red Sea; 731–760 metres. The only relatively deepwater species in the genus.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09FB51FB07FADD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0A09FAB1FB73F9BE.text	03BC87EFE8358B2E0A09FAB1FB73F9BE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona japonica Shiino 1961	<div><p>4. Argathona japonica Shiino, 1961.</p> <p>Okinoyama, Japan; 85–95 metres. Although Shino (1961) included Richardson (1910) in the references there is no text reference to that publication, nor was there a direct comparison of A. japonica to Argathona setosa Richardson, 1910. The general setosity and specifically the falcate shape of the uropodal endopod agrees with that of A. setosa, and the possibility must be considered that the two species are the same.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09FAB1FB73F9BE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0A09F9D1FBA7F8FE.text	03BC87EFE8358B2E0A09F9D1FBA7F8FE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona kulai (Bruce 1982)	<div><p>5. Argathona kulai (Bruce, 1982c).</p> <p>Subtidal; Perth region, Western Australia, Gulf of Carpentaria, and Great Barrier Reef, Queensland (Anil et al. 2022); recorded at depths of 110 to 150 metres. The species was recently transferred from the genus Corallana Dana, 1853 by Anil et al. (2022).</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09F9D1FBA7F8FE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0A09F891FC2AF87E.text	03BC87EFE8358B2E0A09F891FC2AF87E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona macronema (Bleeker 1857)	<div><p>6. Argathona macronema (Bleeker, 1857).</p> <p>Java Sea (Bleeker, 1857). In need of redescription. This is a relatively much-recorded species—see species account below.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8358B2E0A09F891FC2AF87E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2D0A09F812FE47FEFE.text	03BC87EFE8358B2D0A09F812FE47FEFE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona muraena Bal & Joshi 1959	<div><p>7. Argathona muraena Bal &amp; Joshi, 1959.</p> <p>In need of redescription. The whereabouts of the type material is unknown [not stated by Bal &amp; Joshi (1959)]. The generic status is uncertain as the pereopods are similar to those of Alcirona, while the mouthparts correspond with that of Argathona. Recorded from Muraena tessellata [now Gymnothorax favagineus Block &amp; Schneider] Muraenidae; Bombay, India.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2D0A09F812FE47FEFE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8358B2E0879FC51FA52FC7E.text	03BC87EFE8358B2E0879FC51FA52FC7E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona Stebbing 1905	<div><p>Argathona Stebbing, 1905</p> <p>Restricted synonymy. — Delaney, 1989: 16.</p> <p>Type species: Argathona normani Stebbing, 1905; by original designation.</p> <p>Remarks. Corallanid genera, keyed by Delaney (1989), are identified primarily by characters of the buccal appendages. Argathona has a 4-articled or 5-articled maxilliped palp with broad articles that have convex margins, a single lobed quadrate or sub-quadrate maxilla and the maxillula has only one prominent falcate robust seta at the apex with some smaller falcate robust setae at the base of the major seta; typically, the mandible molar is relatively larger and wider than in the other genera (see Delaney, 1989) and may be tridentate. Both Corallana Dana, 1853 and Excorallana Stebbing, 1904 have a slender maxilliped with sub-quadrate palp articles. In Alcirona Hansen, 1890 the maxillula has two terminal falcate robust setae, the maxilla is distally distinctly rounded and the dactylus of pereopods 1–3 has a series of prominent spines giving it a comb-like appearance. In Lanocira Hansen, 1890, the maxillula is in the form of a large hook, while the maxilla is 2-articled and elongate (Delaney, 1989; Bruce &amp; Sidabalok, 2011) rather than a single quadrate or sub-quadrate article. Species of Argathona are frequently moderately to heavily setose over the dorsal body surfaces, often with stiff ‘hyaline’ setae, particularly on the pleotelson, a character shared with Alcirona and to a lesser degree Lanocira.</p> <p>It is clear when reviewing the history of the genus that assigning species to a genus has often been problematic, and the identification of species also similarly difficult. At present, at least two species held in combination with Argathona are of doubtful generic placement, and one additional species is a likely junior synonym. The widely reported Argathona macronema (Bleeker, 1857) contains at least two species under that name and the status of this species will need to be resolved. The species are discussed under the annotated list of Argathona species.</p> <p>Sexual dimorphism. It is usually reported that ornamentation such as rostrum development or pereonal and pleonal nodules is less developed in females. In Argathona lineata new species, and A. trichota new species, the ovigerous females are far more strongly setose than males and non-ovigerous females, with some non-ovigerous specimens having a largely or totally smooth pereon and presenting a rather different appearance. Other diagnostic characters, such as the shape of the pleotelson, uropods, frontal lamina shape, and also the pattern and number of robust setae on the appendages, allows for identification of both males and females in those species where there is some sexual variation as outlined above.</p> <p>Distribution. Argathona occurs throughout the Indo-West Pacific, primarily within the tropics, and to date has not been reported from the Atlantic or East Pacific (Delaney, 1989).</p> </div>	https://treatment.plazi.org/id/03BC87EFE8358B2E0879FC51FA52FC7E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFE91FD0BFEBE.text	03BC87EFE8368B2D093BFE91FD0BFEBE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona normani Stebbing 1905	<div><p>8. Argathona normani Stebbing, 1905.</p> <p>Type species. Sri Lanka; 55 metres; also, India (Barnard, 1936).</p></div> 	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFE91FD0BFEBE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFED1FEB4FE1E.text	03BC87EFE8368B2D093BFED1FEB4FE1E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona parca Hale 1940	<div><p>9. Argathona parca Hale, 1940.</p> <p>A smooth-bodied species with a relatively long and slender frontal lamina. Known only ‘from eye of Queensland Groper’ [= grouper, Serranidae], Humocky Island [north of Gladstone], Queensland.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFED1FEB4FE1E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFE71FEBDFD9E.text	03BC87EFE8368B2D093BFE71FEBDFD9E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona rhinoceros (Bleeker 1857)	<div><p>10. Argathona rhinoceros (Bleeker, 1857).</p> <p>See present account; largely parasitic on fish, particularly the family Serranidae; recorded from India to eastern Australia; 1–90 metres.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFE71FEBDFD9E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFDF1FEC9FCFE.text	03BC87EFE8368B2D093BFDF1FEC9FCFE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona rostrata Bruce 1982	<div><p>11. Argathona rostrata Bruce, 1982b.</p> <p>Southern and northern Great Barrier Reef, Queensland, from sponges, 8–11 metres; also, Motupore Island, Papua New Guinea, from sponges (Bruce, 1982a). This species has a prominent truncate rostrum.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFDF1FEC9FCFE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFC91FD91FC9E.text	03BC87EFE8368B2D093BFC91FD91FC9E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona setosa Richardson 1910	<div><p>12. Argathona setosa Richardson, 1910.</p> <p>Linao Point, 7°02′00″N, 125°37′45″E, Philippines at a depth of 38 metres; in need of redescription.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFC91FD91FC9E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFCF1FD1DFBBE.text	03BC87EFE8368B2D093BFCF1FD1DFBBE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona stebbingi Nierstrasz 1931	<div><p>13. Argathona stebbingi Nierstrasz, 1931.</p> <p>Laiwui, Bisai Island; east of Pulau Obi, North Maluku, Indonesia. The pereopod and maxillule morphology is typical of Alcirona; while the setosity and uropodal exopod shape are closely similar to that of Argathona setosa Richardson, 1910. A redescription is needed to determine the generic and species status of this species.</p> </div>	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFCF1FD1DFBBE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B2D093BFBD1FEECFB3E.text	03BC87EFE8368B2D093BFBD1FEECFB3E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona sulcata Richardson 1910	<div><p>14. Argathona sulcata Richardson, 1910.</p> <p>East coast of Luzon, Legaspi Light, at a depth of 267 metres, Philippines. Pleotelson dorsal surface with four longitudinal carinae.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8368B2D093BFBD1FEECFB3E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8368B27084BFB71FA98FA9E.text	03BC87EFE8368B27084BFB71FA98FA9E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona lineata Bruce & Wong & Merrin 2022	<div><p>Argathona lineata, new species</p> <p>(Figs. 1–5)</p> <p>Argathona sp. 1.— Bruce &amp; Wong, 2015: 160.</p> <p>Argathona cf. setosa.— Bruce &amp; Wong, 2015: 160.</p> <p>Material examined (all Singapore). Holotype: Female (ovig. 9.9 mm), Southern Fairway near St. John’s Island, 01°12.561–669′N, 103°51.322–460′E, 27 May 2013, rectangular dredge; depth 46.1–72.0 m, stn. DR91, SS-1971, coll. Lim Swee Cheng &amp; party (ZRC.2020.0137). Paratypes: 4 females (ovig. 10.1 [uropod only], 9.7 [full dissection], 8.9; non-ovig. 10.2 [dissected P1, mxpd, mx1, mx2] mm), same data as holotype (ZRC.2020.0138). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Female</a> (ovig. 11.9 mm), off <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Eastern Bunkering</a> A, 01°18.861–595′N, 104°05.128–197′E, 28 May 2013, beam trawl, depth 26.7–33.7 m, stn. TB99, SS-1966, coll. Lim Swee Cheng &amp; party (ZRC.2020.0139). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Female</a> (non-ovig. 11.5 mm), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Kusu Island</a>, 01°13.274′N, 103°51.659′E, 03 Jun 2013, depth 19.1 m, SCUBA, stn. SD166, SS-4218, coll. Tan Heok Hui &amp; party (ZRC.2020.0140). 2 females (non-ovig. 9.9. 8.2, mm; large specimen damaged), off <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Eastern Bunkering</a> A, 01°18.861–595N, 104°05.128–197′E, 28 May 2013, beam trawl, depth 26.7–33.7 m, stn. TB99, SS-1968, coll. S.C. Lim &amp; party (ZRC.2020.0141). Female (non-ovig. 11.3 mm), off <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Eastern Bunkering</a> A, 01°18.861–595′N, 104°05.128–197′E, 28 May 2013, beam trawl, depth 26.7– 33.7 m, stn. TB99, SS-5397, coll. Lim Swee Cheng &amp; party (ZRC.2020.0143). Female (ovig. 8.1 mm), imm. (5.1mm), west of <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Pulau Pawai</a>, 01°11.104–387′N, 103°42.061–185′E, 15 Oct 2014, rectangular dredge, depth 23.6–23.7 m, stn. DR506, SEA-9225, coll. Chim Chee Kong &amp; party (ZRC.2022.0033). Female (non-ovig. 9.1 mm), Eastern Bunkering A, 01°18.861–595′N, 104°05.128–197′E, 28 May 2013, beam trawl, depth 33.7– 26.7 m, stn. TB99, SS-1967, coll. Lim Swee Cheng &amp; party (ZRC.2022.0034). Female (ovig. 7.5 mm), imm. (6.0mm), near Eastern Bunkering A, 01°18.425–502′N, 104°04.607–844′E, 28 May 2013, beam trawl, depth 22.7– 22.4 m, stn. TB97, SS-1970, coll. Lim Swee Cheng &amp; party (ZRC.2022.0035).</p> <p>Additional specimens. manca (6.7 mm), off Pulau Senang, 01°09.942–949′N, 103°43.458–471′E, 05 Jun 2013, beam trawl, depth 24.3–24.5 m, stn. TB185, SS-5409, coll. Lim Swee Cheng &amp; party (ZRC.2020.0144). Female (preovig. 9.0 mm), off Changi Naval Base 01°18.702–838’N, 104°03.234–479’E, 08 Apr 2014, rectangular dredge, depth 12.9–14.7 m, stn. DR363, SEA-6135, coll. Teresa Tay &amp; party (ZRC.2020.0145). Female (non-ovig. 9.9 mm), off Changi Naval Base 01°18.702–838′N, 104°03.234–479′E, 08 Apr 2014, rectangular dredge, depth 12.9–14.7 m, stn. DR363, SEA-6137, coll. Teresa Tay &amp; party (ZRC.2020.0146). Female (non-ovig. 7.2 mm), off Changi Naval Base, 01°18.522–874′N, 104°02.751–672′E, 08 Apr 2014, rectangular dredge, depth 10.9–17.5 m; stn. DR362, SEA-6700, coll. Teresa Tay &amp; party (ZRC.2020.0147). Female (non-ovig. 7.9 mm), off Changi Naval Base 01°18.702– 838′N, 104°03.234–479′E, 08 Apr 2014, rectangular dredge, depth 12.9–14.7 m, stn. DR363, SEA-6833, coll. Teresa Tay &amp; party (ZRC.2020.0148). 2 imm. (6.6, 6.8 mm), 1 manca (5.2 mm), between Pulau Ubin and Pulau Tekong, 06 Mar 2012, rectangular dredge, depth 16 m, stn. CMBS-D06, coll. CMBS party (ZRC.2020.0149). 2 imm. (6.8, 7.0 mm), 1 manca (5.8 mm) between Pulau Ubin and Pulau Tekong, 06 Mar 2012, rectangular dredge, depth 16 m, stn. CMBS-D06, coll. CMBS party (ZRC.2020.0150).</p> <p>Description of female. Body 3 times as long as greatest width, widest at pereonite 5, dorsal surfaces finely setose; lateral margins subparallel, coxae 4–7 and pleonites 3 and 4 laterally setose. Rostral point present, projecting anteriorly, minute. Eyes separated by about 46% width of head; eye colour black. Pereonite 1 and coxae 2–3 each with posteroventral angle rounded; coxae 5–7 with entire oblique carina; posterior margins of pereonites 7 with fine nodules laterally. Pleon with pleonite 1 largely concealed by pereonite 7; pleonites 3–5 posterior margin with continuous small nodules along posterior margin; posterolateral angles of pleonite 2 not visible, not posteriorly produced; pleonite 3 with posterolateral margins extending to posterior margin of pleonite 4, narrowly rounded; posterolateral margin of pleonite 4 sub-truncate with ventral point, not extending beyond posterior margin of pleonite 5; pleonite 5 with posterolateral angles overlapped by lateral margins of pleonite 4. Pleotelson 0.7 times as long as anterior width, dorsal surface with two sub-median fields of stiff hyaline setae; lateral margins weakly convex, margins smooth, posterior margin sub-truncate, without median point, with 6 robust setae.</p> <p>Antennula peduncle articles 1 and 2 entirely fused; articles 3 and 4 0.6 times as long as combined lengths of articles 1 and 2; article 3 1.2 times as long as wide; flagellum with 11 articles, extending to anterior of pereonite 1. Antenna peduncle article 4 2.4 times as long as wide, 2.2 times as long as article 3, inferior margin with 2 short simple setae; article 5 1.1 times as long as article 4, 3.5 times as long as wide, inferior margin with 1 pappose setae; anterodistal angle with cluster of 2 short simple setae; anterodistal angle with cluster of 2 pappose setae; flagellum with 37 articles, extending to posterior of pereonite 4.</p> <p>Frontal lamina pentagonal, ventral surface entirely flat, 2.8 times as long as posterior width, lateral margins concave, anterior margin acute, without small median point.</p> <p>Mandible palp article 2 with 16 distolateral setae; article 3 with 20 smooth RS, terminal seta serrate. Maxillula mesial lobe distally truncate with 1 serrate acute RS; lateral lobe with 1 large acute and 3 falcate RS. Maxilla lateral lobe distally truncate, with 4 short simple setae at distomesial angle. Maxilliped palp article 2 mesial margin with 2 slender setae, lateral margin distally with 1 slender setae; article 3 mesial margin with 5 slender setae, lateral margin with 2 slender setae; article 4 mesial margin with 10 slender setae, lateral margin with 3 slender setae; article 5 distal margin 9 setae, lateral margin with 3 setae.</p> <p>Pereopod 1 basis 2.7 times as long as greatest width, superior distal angle without cluster of acute setae; inferior distal angle with cluster of 5 acute setae; ischium 0.5 times as long as basis, inferior margin with 3 setae, inferior distal margin with 1 molariform RS, superior distal margin with 1 RS; pereopod 1 merus inferior margin with 7 molariform RS, set as single row, inferior margin with 7 simple stiff acute setae, inferior distal margin with 0 RS, superior distal angle with 3 stiff setae; carpus inferior margin with 0 RS, and 1 simple setae; propodus 2.1 times as long as wide, inferior margin with 2 small RS, inferior margin with 0 simple setae, inferior distal margin with 1 large RS and 7 setae. superior distal with 2 simple setae; dactylus 0.8 times as long as propodus. Pereopod 2 ischium inferior margin with 6 short setae, inferodistal margin with 2 molariform RS, and 2 acute RS, distolateral margin with 4 simple setae superior distal angle with 0 long simple setae and 1 RS; merus inferior margin with 7 stout molariform RS set as two groups, inferior distal margin with 0 stout RS, superior distal margin with 5 stout acute RS, superior distal margin with 4 acute RS; carpus inferior distal margin with 2 small RS; propodus 2.3 as long as wide, inferior margin with 1 small RS; inferior distal margin with 1 stout RS and 5 simple setae; dactylus 0.8 times as long as propodus. Pereopod 3 similar to pereopod 2. Pereopod 6 similar to pereopod 7, but ischium with 8 RS on inferior margin. Pereopod 7 basis 2.5 times as long as greatest width, superior margin weakly convex, inferior margin with 1 palmate setae and row of short simple setae); ischium 0.5 times as long as basis, inferior margin with 7 RS (set as 3+1+3), superior distal angle with 6 simple and biserrate RS, inferior distal angle with 7 RS; merus 0.6 times as long as ischium, 1.4 times as long as wide, inferior margin with 3 RS, superior distal angle with 7 RS, inferior distal angle with 7 RS; carpus 0.7 times as long as ischium, 1.9 times as long as wide, inferior margin with 2 small RS, superior distal angle with 14 simple and biserrate RS, inferior distal angle with 6 RS; propodus 0.9 times as long as ischium, 3.5 times as long as wide, inferior margin with 3 single RS, superior distal angle with 2 slender setae. 2 pappose setae and 2 acute RS, inferior distal angle with 3 RS; dactylus 0.5 times as long as propodus.</p> <p>Pleopod 1 exopod 1.7 times as long as wide; lateral margin straight, distally broadly rounded, mesial margin strongly convex, with PMS from distal one-third, with ~54 PMS; endopod 2 times as long as wide, distally broadly rounded, convex, with PMS on distal margin only, mesial margin with PMS on distal margin only, pleopod 1 endopod with ~24 PMS; peduncle 1.8 times as wide as long; mesial margin with 4 coupling setae. Pleopod 2 exopod with ~66 PMS, endopod with ~27 PMS. Pleopod 3 exopod with ~74 PMS, endopod damaged. Pleopod 4 exopod and endopod damaged. Pleopod 5 exopod damaged. Pleopods 2–5 peduncle distolateral margin without prominent acute RS, 3–5 endopods with distomesial serrate scales.</p> <p>Uropod peduncle ventrolateral margin with 2 RS, lateral margin without medial short acute robust seta, posterior lobe about two-thirds as long as endopod; rami extending to pleotelson apex (or just a little beyond), marginal setae in single dense tier, apices broadly rounded; dorso-lateral surfaces with sparse acute hyaline setae. Endopod apically not bifid; lateral margin weakly convex, proximal lateral margin with 0 RS; distal lateral margin with 3 RS, mesial margin strongly convex, with 7 RS. Exopod not extending to end of endopod, 2.9 times as long as greatest width, apically not bifid; lateral margin weakly convex, with 8 RS; mesial margin weakly convex, with 3 RS.</p> <p>Size. Ovigerous females 8.8–11.9 mm (mean = 9.8 mm); non-ovigerous females 7.2–11.5 mm (mean = 9.4 mm; mancas 5.2–6.7 (mean 5.9 mm); immature specimens (small, post-manca) 5.4–7.0 mm (mean = 6.5 mm).</p> <p>Variation. The abundance of setae, particularly on the uropodal rami makes it difficult to count the number of robust setae. Of the specimens examined the range of marginal robust setae on the uropodal rami is (single extreme count in parentheses): uropodal endopod mesial margin 6–7 (0), uropodal endopod lateral margin 2–3 (1); uropodal exopod mesial margin 2–4, uropodal exopod lateral margin 7–8 (0).</p> <p>Non-ovigerous specimens are almost entirely without setae on the dorsal surfaces, but are otherwise similar to ovigerous females. No males were present in the material examined.</p> <p>Remarks. Argathona lineata, new species, can be recognised by the following combination of characters: a pentagonal frontal lamina 3.8 times longer that its posterior width, posterior margins of pleonites 3–5 with transverse row of nodules, rounded uropodal rami that only just extend past the pleotelson apex, a sub-truncate pleotelson posterior margin and the dorsal surface of the pleotelson with two dense sub-median fields of acute hyaline setae, with a few further hyaline setae on the dorsal surfaces of the uropodal rami. In fresh specimens there appear to be five or six longitudinal stripes of brown (or dark orange) chromatophores, but these fade with age, and that pattern is also present in some other species. Photos of this species can be seen at the website “The Biodiversity of Singapore ” at the following link: https://singapore.biodiversity.online/species/A-Arth-CrusIsopoda-000006</p> <p>Argathona confine Hale, 1925 is similar, but lacks pleonal nodules, the uropodal endopod is distally more acute, the pleotelson apex is more narrowly and distinctly rounded, and the body surfaces are more dorsally setose than A. lineata new species</p> <p>Argathona crenulata Bruce, 1982b is also similar but smaller (male mean length 6.6 mm; female mean length 7 mm), lacks dorsal setae, and also has posterior margins of pereonites 5 to 7 nodular. The shape of the pleotelson is less truncate and also has sub-lateral elongate ridges.</p> <p>Argathona setosa Richardson, 1910 has an acute uropodal endopod with a falcate apex and strongly convergent pleotelson margins, and the body dorsal surfaces are more densely setose. The species is in need of redescription but is otherwise evidently very different to A. lineata new species</p> <p>Argathona hirsuta Hobbins &amp; Jones, 1993 is a deep-water species, has a differently shaped pleotelson, but notably has long robust setae on the pleotelson and uropodal margins; the pereonites and pleonites lack nodules and the frontal lamina is elongate-pentagonal with parallel lateral margins.</p> <p>Argathona normani Stebbing, 1905 has dense setae over all of the dorsal body surfaces, has large widely separated nodules on posterior pereonites and pleonites (A. lineata has small and more numerous nodules), and a relatively short uropodal exopod (A. lineata has a longer uropodal exopod) and the uropodal exopod is narrowly rounded, with the uropodal endopod apex forming a distinct angle (A. lineata has both uropodal rami with broadly rounded apices).</p> <p>Etymology. The epithet is derived from the Old English word ‘line’ and the old French word ‘ligne’ both meaning rope, cord or string; and also from the Latin ‘linum’ (flax) and ‘linea’ (fibre) (Brown, 1956); alluding to the dorsally lined chromatophore pattern of this species.</p></div> 	https://treatment.plazi.org/id/03BC87EFE8368B27084BFB71FA98FA9E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE83C8B220AF2FA11FE2AF816.text	03BC87EFE83C8B220AF2FA11FE2AF816.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona trichota Bruce & Wong & Merrin 2022	<div><p>Argathona trichota, new species</p> <p>(Figs. 6–10)</p> <p>Argathona sp. 2.— Bruce &amp; Wong, 2015: 160.</p> <p>Material examined</p> <p>Holotype. Female (ovig. 10.4 mm), off Eastern Boarding Ground A, 01°12.974–958′N, 103°52.960–832′E, 30 May 2013, beam trawl, depth 113–128 m, stn. TB127, SS-4153, coll. Lim Swee Cheng &amp; party (ZRC.2020.0151).</p> <p>Paratypes. 2 females (ovig. 8.8 [dissected], 8.2 mm), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.754&amp;materialsCitation.latitude=1.2064834" title="Search Plazi for locations around (long 103.754/lat 1.2064834)">Pulau Semakau</a>, 01°12.389′N, 103°45.240′E, 23 May 2013 SCUBA coral brushing, depth 5 m, stn. SB41, SS-5382, coll. Heok Hui Tan &amp; party (ZRC.2020.0152). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.85132&amp;materialsCitation.latitude=1.2186" title="Search Plazi for locations around (long 103.85132/lat 1.2186)">Female</a> (non-ovig. 8.8 mm), St. John’s Island, 01°13.116′N, 103°51.079′E, 29 May 2013, gill net, depth 2 m, stn. SW104, SS-0858, M. R bin Duriat &amp; D. Uyeno (ZRC.2020.0153). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.794334&amp;materialsCitation.latitude=1.1812667" title="Search Plazi for locations around (long 103.794334/lat 1.1812667)">Female</a> (non-ovig. 9.2 mm), south of Pulau Sebarok, 01°10.876′N, 103°47.660′E, 03 Sep 2013, rectangular dredge; depth 32.5 m, stn. DR197, SEA-0102, coll. Helen Wong &amp; party (ZRC.2020.0154).</p> <p>Description of female. Body 2.7 times as long as greatest width, widest at pereonite 5, dorsal surfaces all densely setose, lateral margins subparallel. Rostral point present, projecting anteriorly, minute. Eyes separated by about 54% width of head, each eye made up of ~6 transverse rows of ommatidia, each row with ~11 ommatidia, eye colour dark brown. Pereonite 1 and coxae 3 each with posteroventral angle right-angled, coxae 2 rounded; coxae 5–7 with entire oblique carina; posterior margins of pereonites 5 and 6 smooth, that of pereonite 7 very finely nodular. Pleon with pleonite 1 largely concealed by pereonite 7; pleonites 3 and 5 posterior margins smooth, pleonite 4 with fine nodules; posterolateral angles of pleonite 2 concealed, not posteriorly produced; pleonite 3 with posterolateral margins not extending to posterior margin of pleonite 5, acute; posterolateral margin of pleonite 4 subtruncate with ventral point, not extending beyond posterior margin of pleonite 5; pleonite 5 with posterolateral angles overlapped by lateral margins of pleonite 4. Pleotelson 0.6 times as long as anterior width, dorsal surface without longitudinal carina; lateral margins weakly sinuate, smooth; posterior margin sub-truncate, without median point, with 6 robust setae.</p> <p>Antennule peduncle articles 1 and 2 entirely fused; articles 3 and 4 0.7 times as long as combined lengths of articles 1 and 2, article 3 2 times as long as wide; flagellum with 10 articles, extending to anterior of pereonite 1. Antenna peduncle article 4 3.0 times as long as wide, 2.8 times as long as article 3, inferior margin with 1 pappose seta, and 1 short simple seta; article 5 1.2 times as long as article 4, 3.9 times as long as wide, inferior margin without pappose setae; anterodistal angle with cluster of 2 pappose setae; anterodistal angle without cluster of short simple setae; anterodistal angle with cluster of 2 long simple setae; flagellum with 32 articles, extending to middle of pereonite 4.</p> <p>Frontal lamina 0.7 times as long as posterior width, lateral margins straight, diverging slightly towards anterior, anterior margin acute, without small median point.</p> <p>Mandible palp article 2 with 18 simple and biserrate distolateral setae; article 3 with 20 robust biserrate setae. Maxillula mesial lobe with distal margin truncate and concave, distomesial angle with two recurved RS; lateral lobe with 1 large, 1 small falcate and 1 small straight terminal robust setae. Maxilla distally rounded, with 2 small simple setae and 2 stiff setae. Maxilliped palp article 2 mesial margin with 3 slender setae, lateral margin distally with 1 slender setae; article 3 mesial margin with 3 slender setae, lateral margin with 2 slender setae; article 4 mesial margin with 8 slender setae, lateral margin with 3 slender setae; article 5 distal margin 14 setae, lateral margin with 3 setae.</p> <p>Pereopod 1 basis 2.4 times as long as greatest width, superior distal angle with cluster of 2 acute setae; inferior distal angle with cluster of 7 acute setae; ischium 0.5 times as long as basis, inferior margin with 2 setae, inferior distal margin with 4 RS, superior distal margin with row of 9 long stiff setae; merus inferior margin with 9 molariform RS, set as two groups, inferior margin with row of 13 stiff acute setae, inferior distal margin without RS, superior distal angle with 5 setae and 1 RS; carpus inferior margin without RS, inferior margin with 2 simple setae; propodus 1.8 times as long as wide, inferior margin with 2 RS, inferior margin without simple setae, inferior distal margin with 1 large RS and 10 simple setae, superodistal angle with 2 pappose setae; dactylus 0.7 times as long as propodus. Pereopod 2 ischium inferior margin without stout, bluntly rounded RS, with 1 acute RS and 5 simple setae; distal margin with 1 RS; without molariform RS; ischium superior distal margin with 3 long simple setae; without RS; merus inferior margin with 6 molariform RS, set as two groups, inferior distal margin with 7 stout RS, superior distal margin with 2 stout RS and 2 setae; carpus inferior distal margin with 1 RS; propodus 2.5 times as long as wide; inferior margin with 2 RS; inferodistal margin with 1 long RS and 6 simple setae; dactylus 0.6 times as long as propodus. Pereopod 3 similar to pereopod 2. Pereopod 6 similar to pereopod 7. Pereopod 7 basis 2.7 times as long as greatest width, superior margin weakly convex, inferior margin without palmate setae; ischium 0.5 times as long as basis, inferior margin with 8 RS set as clusters of 3+3+2, superior distal angle with 4 simple and 1 biserrate RS, inferior distal angle with 8 RS and 2 setae; merus 0.7 times as long as ischium, 1.6 times as long as wide, inferior margin with 6 RS(set as 2+2, superior distal angle with 10 RS, inferior distal angle with 7 RS; carpus 0.6 times as long as ischium, 2.4 times as long as wide, inferior margin with 1 RS, superior distal angle with smooth and biserrate 12 RS, inferior distal angle with 5 RS; propodus 0.8 times as long as ischium, 3.9 times as long as wide, inferior margin with 4 single of RS, superior distal angle with 3 slender and 2 pappose setae, inferior distal angle with 2 simple setae; dactylus 0.4 times as long as propodus.</p> <p>Pleopod 1 exopod 1.8 times as long as wide, lateral margin weakly convex, distally broadly rounded, mesial margin strongly convex, with PMS from distal one-third, with ~52 PMS; endopod 2.2 times as long as wide, distally subtruncate, lateral margin weakly concave, with PMS on distal margin only, mesial margin with PMS on distal margin only, endopod with ~19 PMS; peduncle 2.3 times as wide as long; mesial margin with 4 coupling setae. Pleopod 2 exopod with ~62 PMS, endopod with ~24 PMS. Pleopod 3 exopod with ~72 PMS, endopod with ~16 PMS. Pleopod 4 exopod with ~66 PMS, endopod with ~13 PMS. Pleopod 5 exopod with ~65 PMS. Pleopods 2–5 peduncle distolateral margin with prominent acute RS; pleopods 1–5 exopod lateral margins each with widely spaced serrations; pleopods 3–4 endopods with mesial serrate scale patch, 5 with mesial and distomesial scale patches.</p> <p>Uropod peduncle and rami dorsolaterally densely covered with stiff, acute hyaline setae; peduncle ventrolateral margin RS not visible, lateral margin without medial short acute robust seta, posterior lobe about three-quarters as long as endopod; rami extending beyond pleotelson, marginal setae in single tier, apices broadly rounded. Endopod apically not bifid; lateral margin weakly convex, proximal lateral margin with 3 RS; mesial margin strongly convex, with 8 RS. Exopod not extending to end of endopod, 3.0 times as long as greatest width, apically not bifid; lateral margin weakly convex, with 4 RS, proximal RS slender not ‘peglike’; mesial margin weakly convex, with 2 RS.</p> <p>Size. Ovigerous females 8.2–10.4 mm (mean = 9.1 mm); single non-ovigerous female 9.2 mm.</p> <p>Remarks. Argathona trichota, new species, has a uniquely short frontal lamina that is shorter than the posterior width, effectively separating it from all other species in the genus. In addition, the ovigerous females have the dorsum covered by dense hyaline setae, which in combination with the relatively short antennal flagellum extending to mid-pereonite 4, sub-truncate pleotelson posterior margin and the rounded uropodal endopod, all serve to identify the species.</p> <p>Argathona lineata, new species, is similar in general morphology, particularly the shape of the uropods and pleotelson but A. trichota differs in having a shorter frontal lamina, abundant hyaline setae all over the dorsum; fine pleonal tubercles only on the posterior margin of pereonite 7; a shorter antennal flagellum that extends to mid-pereonite 4 (to posterior of pereonite 4 in A. lineata); more robust setae on the pereopods; and the mesial margin of the pleopodal exopods all have widely spaced serrations (smooth in A. lineata).</p> <p>Etymology. The epithet is derived from the Greek τριχωτός (trichotós), meaning ‘hairy’.</p></div> 	https://treatment.plazi.org/id/03BC87EFE83C8B220AF2FA11FE2AF816	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE8398B210AE5F8A8FECDFB9E.text	03BC87EFE8398B210AE5F8A8FECDFB9E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona rhinoceros (Bleeker 1857)	<div><p>Argathona rhinoceros (Bleeker, 1857)</p> <p>Restricted synonymy:</p> <p>Argathona rhinoceros. — Monod, 1976: 853, fig. 1–4.— Bruce, 1982b: 14, fig. 1.— Delaney, 1989: 17, figs 1B, 7, 8.</p> <p>Argathona rhinocerous. — Anil, Das and Jayaraj, 2018: 297, figs 2–4 [lapsus].</p> <p>Argathona cf. rhinoceros. — Bruce &amp; Wong, 2015: 160.</p> <p>Material examined: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.85284&amp;materialsCitation.latitude=1.22195" title="Search Plazi for locations around (long 103.85284/lat 1.22195)">Female</a> (non-ovig. 15.4 mm), Lazarus Island, 01°13.317′N, 103°51.170′E, 23 May 2013, SCUBA, from <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Blue-ring Angelfish</a> Pomacanthus annularis, depth, 16.2 m, stn SD 45, SS-0828, coll. Heok Hui Tan &amp; party (ZRC.2022.0014). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860985&amp;materialsCitation.latitude=1.2212334" title="Search Plazi for locations around (long 103.860985/lat 1.2212334)">Female</a> (non-ovig. 13.8 mm), Cyrene Reef, 01°15.374′N, 103°44.816′E, 27 May 2013, hand collected, intertidal, tide at 0.2-1.2 m, stn. IT86, SS-1917, coll. Lee Yen-Ling &amp; party (ZRC.2022.0015). Imm. (c. 13 mm), Kusu Island, 01°13.274′N, 103°51.659′E, 03 Jun 2013, SCUBA, hand collected, depth 19.1 m, stn. SD166, SS-4217, coll. Heok Hui Tan &amp; party (ZRC.2022.0016).</p> <p>Remarks: Argathona rhinoceros can be recognised by the smooth body surface and prominent rounded rostrum (Monod 1976: 854, figs. 1, 2). This species has been widely reported from fish, primarily groupers. The specimens here were taken from the Blue-ringed Angelfish, Pomacanthus annularis (Bloch). The strong association with fish may be connected to the smooth body surfaces shown by this species, in contrast to many other species in the genus. Photos of this species can be seen at the website “The Biodiversity of Singapore ” at the following link: https://singapore.biodiversity.online/ species/A-Arth-Crus-Isopoda-000098</p> <p>Fish hosts are Pomacanthus annularis (present work); Lutjanus sp. (as Emperor) (Bruce 1982b); Epinephelus malabaricus (Bloch &amp; Scneider), Epinephelus tauvina (Forsskål), Epinephelus chlorostigma (Valenciennes), Variola louti (Forsskål), Plectropomus leopardus (Lacepède) (all from Delaney, 1989).</p> </div>	https://treatment.plazi.org/id/03BC87EFE8398B210AE5F8A8FECDFB9E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
03BC87EFE83A8B3F098AFB10FB05FCBE.text	03BC87EFE83A8B3F098AFB10FB05FCBE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Argathona macronema (Bleeker 1857)	<div><p>Argathona aff. macronema (Bleeker, 1857)</p> <p>Aega macronema Bleeker, 1857: 23, pl. 1 figs. 1–lc. Monod, 1975: 1003.</p> <p>Corallana macronema.— Miers, 1880: 469.</p> <p>Brotherus longicornis Budde-Lund, 1908: 307.— Stebbing, 1911: 179; Monod, 1975: 1003.</p> <p>Argathona similis Richardson, 1910: 11, fig. 10.— Hale, 1925: 162, fig. 16; 1929: 251, figs. 244–245; Nierstrasz, 1931: 175; Monod, 1933: 177; 1975: 1003.</p> <p>Alcirona macronema.— Nierstrasz, 1917: 97, pl. 14 figs. 29–35; 1931: 168; Monod, 1924: 99; 1975: 1003.</p> <p>Orcilana hanseni Nierstrasz, 1931: 170, figs. 48–57, pl. 40 figs. 19–20.— Monod, 1975: 1003.</p> <p>Argathona longicornis.— Monod, 1933: 179, 182.</p> <p>Argathona macronema.— Monod, 1933: 174, 182, figs. 4–11; 1975: 1003, figs. 1–20; Nordenstam, 1946: 14; Shiino, 1961: 98; Bruce, 1982b: 13; 1997: 200; 1999: 306; 2002: 210; Grutter &amp; Lester, 2002: 250; Trilles, 2008: 27; Justine, 2010: 170; Anil et al. 2018: 298, figs 5, 6, 4.</p> <p>Material examined: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=103.860664&amp;materialsCitation.latitude=1.2219" title="Search Plazi for locations around (long 103.860664/lat 1.2219)">Female</a> (non-ovig. 13.7 mm), Kusu Island, 01°13.314′N, 103°51.640′E, 04 Jun 2013, SCUBA, depth, 16.3 m, stn. SD 177, SS-4249, coll. Heok Hui Tan &amp; party (ZRC.2022.0017). Manca (5.4 mm), taken along with an A. rhinoceros, SS-0828, same data as ZRC.2022.0017 (ZRC.2022.0018).</p> <p>Remarks: Bleeker’s (1857) description and figures are minimal and provide few clues to identity other than the long antennal flagellum. The perceived long antennal flagellum has been critically influential in subsequent species identifications (e.g. Monod, 1933, 1975; Bruce, 1982b). The presence of a long antennal flagellum, among some other characters, has also influenced the placing of several notional species into junior synonymy with A. macronema.</p> <p>Bleeker (1857: figs. 1, 1a–c) gave four small figures, and while there is barely enough detail to characterise the species, it can be seen that the ‘long antennae’ are in fact considerably shorter than that of many the records and synonyms subsequently reported under the name A. macronema, extending at most to the anterior of pereonite 5 rather than posterior of pereonites 6 and 7 (or longer) for most subsequent records. Interpreting Bleeker’s figures suggests that there is a short pentagonal frontal lamina, and that the pleotelson is relatively broadly rounded with a distinct median longitudinal carina; it is not possible to determine if the dorsal surfaces are setose or smooth.</p> <p>Several species have been placed in synonymy, but to date there has been no type-based redescription of A. macronema. Bleeker’s material is held at the Naturalis Museum, Leiden, so probable type specimens are available. Unfortunately, at the time of writing, the probable type material of Argathona macronema (Bleeker, 1857) was not available for examination or loan as the collection was in the process of being relocated (Karen van Dorp, pers. comm.). Monod (1933, 1975) described specimens as this species but his two records are clearly of two different species. Australian specimens (as A. similis Hale, 1925) have a long antennal flagellum extending to nearly to the pleon and a long anteriorly rounded or truncate frontal lamina—not the same as Monod’s (1933, 1975) descriptions. Specimens from the Great Barrier Reef, Queensland (held at the Queensland Museum: QM W10817 – W10828, W15486, W15489) have a long antennal flagellum extending to at least pereonite 6 and occasionally to the anterior of the pleon; the frontal lamina is elongate pentagonal, with rounded angles that can appear rounded if viewed slightly from the posterior. These specimens agree well with the material from Singapore.</p> <p>It is highly probably that several species have been and are being recorded under the name of A. macronema. Some species names may need to be brought out of synonymy. Establishing the identity of both named and potential new species is not possible without a detailed type-based species redescription against which all subsequent records can be assessed, and to confirm identity of the synonymised taxa to make sure that they are or are not the same species. Below are comments on the records of A. macronema with an assessment of their status.</p> <p>Our conclusion is that the current usage of Argathona macronema includes a number of similar species and a full revision, based on the type material for the species, is needed; the material for all records and synonyms needs to be reexamined and the identification confirmed or rejected. For completeness the presented synonymy includes all uses of the name Argathona macronema (in different combinations) as well as the names that have been placed into junior synonymy. It is clear that most subsequent records are misidentifications.</p> <p>Most host records under this species name are from Serranidae.</p> <p>Argathona macronema (Bleeker, 1857). Bleeker’s (1857) figures (figures 1, 1a-c) show the antenna flagellum (described by Bleeker as “plus longue que la moitié de la longuer du corps.”) extends only to the posterior of pereonite 4. If interpreted correctly, the frontal lamina is pentagonal, 2.1 times longer than wide (Bleeker, 1857, figure 1a) and, if interpreted correctly, the pereonites may be setose, but that is not clear, and there is no mention of nodules on the pereonites or pleonites.</p> <p>Locality: Java Sea (as ‘mer du Batavia’).</p> <p>Brotherus longicornis Budde-Lund, 1908. While briefly described by Budde-Lund (1908), there are a number of precise figures that permit some characterisation. Notably the pentagonal frontal lamina has concave lateral margins that clearly diverge towards the anterior, with the straight anterior margins strongly convergent. The pleon and pleotelson both appear setose but there is insufficient detail to allow interpretive comparison to other species. The length of the antennal flagellum was not described or figured. The shape of the frontal lamina excludes this species from both Argathona macronema of Bleeker (1857) and from the Singapore-Australian group of species documented here.</p> <p>Locality. Majunga Bay, northwestern Madagascar; from eels (“Meeraales”).</p> <p>Argathona macronema of Bruce (1982b). This species is common on the Great Barrier Reef and is conspecific with specimens collected in Singapore. It differs from A. macronema (of Bleeker, 1857) in having a longer antennal flagellum that extends to at least the posterior of pereonite 6, sometimes longer if not broken, and an elongate frontal lamina (3.8 times as long as posterior width) with a rounded or ‘rounded pentagonal’ anterior margin. A colour photo of this species was given by Bruce (1999: 306). Referred to below as the ‘ Singapore –Australian species’, this species is possibly the same as Argathona similis Richardson, 1910.</p> <p>Locality: Great Barrier Reef (Bruce, 1982b; Bruce et al., 2002) and Singapore (present study); also, Papua New Guinea and probably Indonesia (Richardson, 1910; Nierstrasz, 1931) and New Caledonia (Justine, 2010); possibly Andaman Islands (Anil et al., 2018).</p> <p>Orcilana hanseni Nierstrasz, 1931. As far as can be seen, this species corresponds to the Singapore –Australian species rather than to Bleeker’s figures, with the antennal flagellum extending to pereonite 7.</p> <p>Locality: Atjatuning, western New Guinea</p> <p>Argathona similis Richardson, 1910. Figured by Hale (1925). This species agrees well with the SingaporeAustralian species, with long to very long antenna extending to the pleon, relatively large eyes, a narrowly rounded pleotelson apex and uropodal rami that extend beyond the posterior margin of the pleotelson. The name has priority over most other species names except Brotherus longicornis Budde-Lund, 1908, but that species is clearly a distinct species (see above).</p> <p>Locality: Lembeh Strait, North Sulawesi, Indonesia; South Australia and Western Australia (Hale, 1925).</p> <p>Argathona macronema of Monod (1933). This species is not the same as the Singapore –Australian species: the antenna flagellum is shorter, extending only to pereonite 5 (vs to posterior of pereonite 6 or 7); it is far more setose dorsally (vs setose only on pleotelson and weakly on pleon, not setose on the pereon); the uropods do not or not significantly extend beyond the pleotelson apex (vs clearly beyond); and the frontal lamina has a rounded anterior margin but is much shorter.</p> <p>Locality: Egypt.</p> <p>Argathona macronema of Monod (1975). The identity of this record is uncertain. It is not the Singapore –Australian species, nor does it appear to be the same as the species from Egypt. The frontal lamina was not described or figured; while the uropods extend well beyond the pleotelson apex, the endopod is drawn as rounded and quite unlike the Singapore –Australian species which has an acute or subacute apex.</p> <p>Locality: Kenya.</p> <p>Alcirona macronema of Nierstrasz (1917). Nierstrasz’s photograph of the dorsal view (plate XIV, fig. 29) shows a posteriorly acute pleotelson apex, with strongly convergent and nearly straight lateral margins; both the uropodal exopod and endopod have acute apices. These characters agree neither with Bleeker’s (1857) original description and figures, nor with the later accounts of Monod (1933, 1975) but correspond to the Singapore –Australian species, based on material examined here from Singapore and the Great Barrier Reef.</p> <p>Locality: Java, Indonesia.</p> <p>Argathona macronema of Anil et al. (2018). As figured, the frontal lamina is elongate–pentagonal, the pleotelson has a notably acute apex and straight lateral margins, the uropodal endopod has an acute apex, and the antennal flagellum is described as extending to pereonite 6. This record does not agree with Bleeker’s (1857) description; it is perhaps most similar to the Singapore –Australian species although the frontal lamina shape differs from that species.</p> <p>Locality: Andaman Islands.</p> <p>Corallana macronema of Miers, 1880. Miers (1880) considered this to be a species of Corallana as it had a “narrow linear interantennulary process (frontal lamina)”; this character would exclude the species from Argathona. Identity not known.</p> <p>Locality: Miers (1880) had no locality data, other than ‘Malaysia’ in the broadest sense.</p></div> 	https://treatment.plazi.org/id/03BC87EFE83A8B3F098AFB10FB05FCBE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Bruce, Niel L.;Wong, Helen P. - S.;Merrin, Kelly L.	Bruce, Niel L., Wong, Helen P. - S., Merrin, Kelly L. (2022): The genus Argathona Stebbing, 1905 (Crustacea: Isopoda: Corallanidae) in Singapore marine waters, with description of two new species. Raffles Bulletin of Zoology 70: 492-510, DOI: 10.26107/RBZ-2022-0027
