identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
00A1D4C709925BD0BA52DBFFE5433F08.text	00A1D4C709925BD0BA52DBFFE5433F08.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Podocerus setouchiensis Arai & Ohno & Tomikawa 2022	<html xmlns:mods="http://www.loc.gov/mods/v3">
    <body>
        <div>
            <p> Podocerus setouchiensis sp. nov.</p>
            <p>Figs 2, 3, 4, 5 New Japanese name: Setouchi-doronomi</p>
            <p>Material examined.</p>
            <p>
                  Holotype: NSMT-Cr 30866, male (5.3 mm), intertidal zone of  
                <a title="Search Plazi for locations around (long 132.4399/lat 34.1462)" href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=132.4399&amp;materialsCitation.latitude=34.1462">Tsuruduki</a>
                 , Etajima, Hiroshima Prefecture, Japan (34.1462°N, 132.4399°E), collected by K. Tomikawa on 18 April 2019  .   Paratypes: NSMT-Cr 30867 (female 4.6 mm), NSMT-Cr 30868 (male 6.0 mm, G1527), NSMT-Cr 30869 (male 4.7 mm), NSMT-Cr 30870 (male 4.2 mm), data same as for holotype; NSMT-Cr 30871, 2 males (5.9 mm, 5.1 mm), intertidal zone of  
                <a title="Search Plazi for locations around (long 133.9893/lat 34.5263)" href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=133.9893&amp;materialsCitation.latitude=34.5263">Gokan</a>
                 , Tamano, Okayama Prefecture, Japan (34.5263°N, 133.9893°E), collected by H. Ogawa on 9 April 2019  . 
            </p>
            <p>Diagnosis.</p>
            <p>Body weakly rugose; pereonites 6-7 and pleonites 1-2 with dorsal carina. Head dorsally smooth. Antenna 1 accessory flagellum 1-articulate. Antenna 2 flagellar article 1 elongate. Uropod 3 rami with setae. Telson shorter than wide, with 2 long robust setae apically, lower margin with short lateral setae.</p>
            <p>Description</p>
            <p>(male, holotype, NSMT-Cr 30866). Body (Fig. 2A-C) weakly rugose; pereonites 6-7 and pleonites 1-2 with dorsal carina. Head (Fig. 2A, C) dorsally smooth; rostrum absent; lateral cephalic lobe squarish. Gnathopod 2 palm of propodus slightly convex with long plumose setae. Uropods 1 and 2 with distoventral projection.</p>
            <p> Antenna 1 (Fig. 3A, B) length 0.8  × body length; length ratio of peduncular articles 1-3 1.0: 2.1: 2.0; peduncular article 1 subquadrate, with long setae on posterior margin; peduncular articles 2 and 3 with 9 and 8 clusters of long setae on posterior margins, respectively; primary flagellum 6-articulate, 0.6  × peduncular articles 1-3 combined, article 1 long, 3.2  × article 2; accessory flagellum slender, 1-articulate. Antenna 2 (Fig. 3C, D) 1.5  × antenna 1; peduncular article 4 with long setae on posterior margin; peduncular article 5, 1.4  × article 4, with short setae on anterior and posterior margins; flagellum 4-articulate, 0.2  × peduncular articles 1-5 combined, article 1 slightly longer than articles 2-4 combined. </p>
            <p>Upper lip (Fig. 3E) oval, ventral margin weakly concave, with minute setae. Lower lip (Fig. 3F) outer lobe broad, setulose; inner lobes distinct. Left and right mandibles (Fig. 3G, H) with 5-dentate incisor; molar process small, non-triturative, with a short plumose seta apically; accessory setal row with 3 setae; palp 3-articulate, length ratio of articles 1-3 1.0: 2.7: 1.9, article 1 bare, article 2 with 20 setae on ventral margin and submargin, ventral margin of article 3 lined with plumose setae, inner surface of article 3 with cluster of setae. Maxilla 1 (Fig. 3I) inner plate indistinct; outer plate rectangular with 9 serrate robust setae; palp article 2 bearing 5 robust and 6 slender setae distally. Maxilla 2 (Fig. 3J) with broad outer plate longer than inner plate, inner and outer plates bearing long plumose setae on apical margin. Maxilliped (Fig. 3K-M) inner plate subrectangular, 3 small robust setae on apical margin and 1 on subapical margin; outer plate slightly exceeding half of palp article 2, medial margin with robust setae and long plumose setae; palp 4-articulate.</p>
            <p> Gnathopod 1 (Fig. 3N) coxa slender, subtriangular, longer than broad; basis length 3.7  × width, lacking setae on anterior and posterior margins; carpus 2.0  × broad, ventral margin weakly lobate with long setae; propodus subtriangular, length 1.9  × wide, anterior margin with 4 clusters of slender setae, posterior margin convex with 3 robust setae at palmar corner; posterior margin of dactylus 6-dentate with short setae. Gnathopod 2 (Fig. 3O) coxa quadrate; basis 1.9  × broad, weakly concave anteriorly, anterodistal corner lobate; posterodistal corner of merus produced with simple and plumose setae; carpus indistinct, fused with propodus, with setae; propodus subovate, 2.1  × wide, anterior margin with 3 clusters of setae and single seta, medial surface with numerous plumose setae, palm slightly convex with long plumose setae, distal shelf well-developed, robust seta at palm defining corner; dactylus smooth, not reaching end of palm, with short setae. </p>
            <p> Pereopods 3 and 4 (Fig. 4A-C) basis lacking anterodistal lobe; ischium subrectangular; merus slightly shorter than carpus, anterodistal corner weakly produced; propodus longer than carpus, lacking robust setae marginally. Pereopod 5 (Fig. 4D) basis without posterodistal lobe; posterodistal corner of merus weakly produced; length ratio of merus-dactylus 1.0: 1.2: 1.8: 1.0. Pereopod 6 (Fig. 4E) basis subrectangular, length 1.4  × wide, posterodistal corner weakly lobate; posterodistal corner of merus weakly produced; length ratio of merus-dactylus 1.0: 1.2: 2.0: 0.9. Pereopod 7 (Fig. 4F) basis length 1.2  × width, posterior margin expanded; merus produced posterodistally; length ratio of merus-dactylus 1.0: 1.2: 1.7: 1.2. </p>
            <p>Pleopods 1-3 (Fig. 4G) peduncle with short setae, inner distal corner with 4 retinacula (Fig. 4H).</p>
            <p> Uropod 1 (Fig. 4I) biramous; peduncle 3.4  × broad, medial and lateral margins each with 4 robust setae, distoventral projection length 0.3  × peduncle; inner ramus 1.2  × peduncle, with 7 medial and 2 lateral robust setae; outer ramus 0.8  × length of inner ramus, with 3 robust setae on lateral margin. Uropod 2 (Fig. 4I) biramous; peduncle 1.3  × broad, with short distoventral projection; inner ramus 1.9  × peduncle, medial and lateral margins with 5 and 2 robust setae, respectively; outer ramus 0.7  × length of inner ramus, bearing 2 lateral robust setae. Uropod 3 (Fig. 4K) uniramous, plate-like; with 4 apical, 1 medial and 1 lateral robust setae. </p>
            <p> Telson (Fig. 4L) length 0.9  × width, dorsal lobe with 2 long robust setae apically, lower margin with short lateral setae. </p>
            <p> Female (paratype, NSMT-Cr 30867). Antenna 1 (Fig. 5A) length ratio of peduncular articles 1-3 1.0: 2.1: 1.9; primary flagellum 5-articulate, 0.4  × peduncular articles 1-3 combined, article 1 long, 2.0  × article 2. Antenna 2 (Fig. 5B) peduncular article 5, 1.4  × article 4; flagellum 3-articulate, 0.3  × peduncular articles 1-5 combined. </p>
            <p> Gnathopod 1 (Fig. 5A) basis almost straight; carpus 2.3  × broad; palmar margin of propodus bearing robust seta; posterior margin of dactylus 4-dentate. Gnathopod 2 (Fig. 5B) basis with anterodistal robust setae; merus produced anterodistally with robust setae; carpus free, distinct from propodus; propodus ovate, length 1.4  × width, palm convex with 3 robust setae near palmar corner. </p>
            <p>Etymology.</p>
            <p>The specific name is derived from the Seto Inland Sea, where this new species is distributed.</p>
            <p>DNA Sequence.</p>
            <p>A sequence of COI (GenBank accession number LC719250; 658 bp) was determined from the paratype female (NSMT-Cr 30868).</p>
            <p>Distribution.</p>
            <p>Known from Hiroshima and Okayama Prefectures.</p>
            <p>Remarks.</p>
            <p> Podocerus setouchiensis sp. nov. is similar to  P. andamanensis (Giles, 1890),  P. casuarinensis Kilgallen, 2009,  P. crenulatus Myers, 1985,  P. fulanus J.L. Barnard, 1962,  P. lazowasemi Baldinger &amp; Gable, 1994,  P. orontes Hughes, 2013, and  P. walkeri Rabindranath, 1972 in having dorsal carinae on pereonites 6 and 7, and pleonites 1 and 2. However, this new species differs from these species by the features shown in the following key.  Podocerus setouchiensis sp. nov. is also similar to  P. ulreungensis Kim &amp; Kim, 1991 from Ulleung Island in the Sea of Japan in having antenna 2 with elongate flagellar article 1, gnathopod 1 with weakly lobate carpus, male gnathopod 2 merus pointed distally, male gnathopod 2 propodus with convex palmar margin bearing long marginal setae and robust seta at palm defining corner, uropod 1 peduncle with distoventral projection, and telson with 2 apical setae. However, this new species is distinguished from the latter by the following features (features of  P. ulreungensis in parentheses): pereonite 6 with dorsal carina (absent); antenna 1 accessory flagellum 1-articulate (2-articulate); antenna 1 flagellar article 1 length 3.2 times as long as article 2 (2.3 times); uropod 2 peduncle with a short distoventral projection (lacking projection); and telson shorter than wide (longer). </p>
        </div>
    </body>
</html>
	https://treatment.plazi.org/id/00A1D4C709925BD0BA52DBFFE5433F08	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.		Pensoft via Plazi	Arai, Takanobu;Ohno, Yujiro;Tomikawa, Ko	Arai, Takanobu, Ohno, Yujiro, Tomikawa, Ko (2022): A new species of the genus Podocerus from the Seto Inland Sea, Japan (Crustacea, Amphipoda, Podoceridae). ZooKeys 1128: 99-109, DOI: http://dx.doi.org/10.3897/zookeys.1128.91155, URL: http://dx.doi.org/10.3897/zookeys.1128.91155
