taxonID	type	description	language	source
03D587965102E77E4D95F9A808B4FDCB.taxon	materials_examined	Material examined. Holotype of Lumbrinerides shimodaensis, NSMT-Pol H- 197, off Shimoda, 50 – 59 m, October 1981. Holotype and paratype of Lumbrinerides lineatus, NSMT-Pol H- 198 and P- 199, off Shimoda, 63 – 70 and 92 – 102 m, respectively, October 1981. Holotype and paratype of Lumbrinerides bidentatus, NSMT-Pol H- 200 and P- 201, around Tsushima, 85 and 125 m, respectively, July to August 1968. Comparative material. Four syntypes of Lumbriconereis acuta, USNM 12895, Rhode Island, off Block Island, 26 m, August 1874. Holotype and two paratypes of Lumbrinerides acutuss japonicus, NSMT-Pol H- 202, off Shimoda, 63 – 70 m, October 1981 and NSMT-Pol P- 203, off Shimoda, 50 – 60 m, October 1981, respectively. Non-type material. (EK B) Seisui-Maru Cruise 1985 - R- 07, Stations 405 A: one female; 405 B: one female, one immature; 406 A: one juvenile; 406 B: one female, one juvenile; 504 A: one female, four juveniles; 505 A: two females, two males, two immature, one juvenile; 505 B: one female, one immature, one juvenile; 506 A: two juvenile; 506 B: one immature. (KII B) Tansei-Maru Cruise KT- 84 - 12, Kii Channel, Station 12 - 1: five immature. (SADO B) Cruise KT- 85 - 14, Japan Sea, Stations D- 2 SM- 2: one immature; F 2 - SM 1: two juvenile; F 2 - SM 2: one immature; F 2 - SM 3: one immature; F 2 - SM 4: one immature, one juvenile; F 3 - BC 1: one immature, one juvenile; F 3 - BC 2: one immature, one juvenile; F 3 - BC 3: one female, one immature; F 3 - SM 1: one female, one juvenile; F 3 - SM 2: two females, two immature, three juveniles; F 3 - SM 3: one female, six immature, five juvenile; F 4 - SM 1: one immature, one juvenile; F 4 - SM 2: two immature; F 4 - SM 3: one immature; F 4 - SM 4: two juveniles. (MISA) two immature.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965102E77E4D95F9A808B4FDCB.taxon	description	Description. Prostomium acorn-shaped with smooth surface without keel-like or other structure except wrinkles by shrinkage, 1.2 – 2.4 times longer than wide in larger specimens (Fig. 6 A). Peristomium with two apodous rings (Fig. 6 A). Three to five anterior parapodia reduced with low conical postchaetal lobe and inconspicuous prechaetal one (Fig. 6 B); fully developed parapodia with elongate subconical postchaetal lobe about twice as long as prechaetal one beginning from chaetigers 7 – 8 (Fig. 6 C, D); both lobes welldeveloped on far posterior parapodia. Four or more broadly limbate chaetae with tapering end occurring on less than ten anterior parapodia, three to one on posterior parapodia, disappearing on far posterior parapodia (Figs 6 B – D, 9, 10). A single hooded hook occurring on parapodia 7 – 20 (Fig. 6 C), two or three on posterior parapodia (Figs 6 D, 9, 10), up to six on far posterior parapodia. Maxilla I normally with one accessory tooth (Figs 6 G, 7), occasionally without tooth (Fig. 6 E, right maxilla I). Maxilla II generally with three teeth (Figs 6 E, G, 7); each tooth always with a single inner cavity, even if with occasional bidentate outline or completely lacking third tooth in a single exceptional large specimen (Fig. 8). Mandibles slender posteriorly, several concentric lines on anterior flared part (Fig. 6 F, H). Variations. Accessory teeth on Maxilla I number zero or one in this species (Fig. 2; EK B). The prostomium is 1.2 to 2.4 times longer than wide. The first simple hooks occur on chaetigers 4 – 6 in juveniles (Fig. 4). The number of anterior reduced parapodia varies between three and five (Table 3). In the Japan Sea population, individuals with three reduced parapodia were dominant (Fig. 2; SADO B), whereas those with four reduced parapodia were dominant off the Pacific coast of Japan (Fig. 2; EK B).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965102E77E4D95F9A808B4FDCB.taxon	discussion	Remarks. In the shape of chaetae and parapodia, no significant difference was found in the type specimens of three species listed as synonymies. They were very short including 15 – 30 chaetigers and I could not find any difference in these characters as in the original description by Imajima (1985). The basal tooth-like projection on the proximal parts of the inner edge of the maxilla I was not considered as an accessory tooth in this study. Although such projection was illustrated to imply a kind of functional teeth in the original descriptions of L. shimodaensis, L. lineatus and L. bidentatus (Fig. 7 A- 3, B- 3, B- 4, C- 4, C- 5), no second accessory tooth was found in the reexamined type specimens (Fig. 7 A- 1, B- 1, B- 2, C- 1, C- 2). Similarly, the left maxilla I of the paratype (NSMT-Pol P- 199) of L. lineatus lacks accessory teeth, the dentition of maxillae I in those nominal species varying from zero to one. Maxillae II of the above three nominal species were also identical (Fig. 7 A- 2, C- 3). The modified external dentation observed may have resulted from meshing between the maxillae II, and between the shafts of maxillae I and the plates of maxillae II. The true bidentate state of maxillae II, namely two external teeth and two pulp cavities was observed only on an exceptionally large specimen collected from the Bungo Channel (Fig. 8 A- 2). The chaetal composition of all of the type specimens for the three nominal species erected by Imajima (1985) was also examined by counting both kinds of chaetae on each parapodium (Fig. 9). In these specimens, a maximum of four limbate chaetae were found on each of the first five or six parapodia, becoming fewer thereafter. In compensation, simple bidentate hooded hooks appeared singly on each parapodium after chaetiger 7 or 8, increasing to two or three after chaetiger 20 (Fig. 9). In other more intact specimens, chaetal composition was more clearly evaluated (Fig. 10), specimen 505 A- 01, for example, collected from Kumano Nada and measuring 0.51 mm wide, having four limbate chaetae each on the first seven parapodia, three on the following seven parapodia, and finally two on the remaining posterior parapodia. The same specimen had simple hooded hooks starting on parapodium 8, one on the next 12 parapodia, two on the next 11 parapodia and three on the subsequent parapodia (Fig. 10). The change in chaetal composition was almost stable in specimens with a body width of more than 0.4 mm (Fig. 4). As a conclusion of revision, L. lineatus and L. bidentatus were regarded as synonyms of L. shimodaensis. Lumbrinerides shimodaensis differs from all other Japanese species in having a single accessory tooth or none on the maxillae I, a small number of reduced anterior parapodia and simple bidentate hooded hooks starting on ca. chaetiger 7 in adult specimens. Lumbrinerides amoureuxi Miura, 1980, L. crassicephala (Hartman, 1965) and L. platypygos (Fauchald, 1970) are also known to have simple hooks starting on ca. chaetigers 6 – 9. Lumbrinerides crassicephala has one accessory tooth on maxilla I and the remaining species differ from L. shimodaensis in having two teeth or none. Lumbrinerides crassicephala has a long prostomim (length to width ca. 3.0) compared with L. shimodaensis in which the proportion is 2.0. The holotype and two paratypes of Lumbrinerides acutus japonicus are all immature and lack a considerable number of posterior chaetigers. In addition, most of the chaetae on the anterior parapodia and the initial position of simple hooks could not be determined. The occurrence of simple hooks mentioned by Imajima (1985) could not be confirmed, only a single hook on parapodium 4 in one paratype, and on parapodium 6 on the other paratypes and on the holotype (Fig. 11) being found. The presence of three to five limbate chaetae on anterior parapodia in one of the paratypes suggests an absence of hooks on those parapodia as the maximal number of chaetae on a single anterior parapodium is thought to be four in most Japanese specimens, as mentioned above. This chaetal composition closely resembles that described for L. shimodaensis, in which the first several parapodia lack simple hooks and are provided with only four limbate chaetae, or possibly five (Fig. 10). In these details, the specimens do not differ from L. shimodaensis. The presence of an accessory tooth on maxillae I is also consistent with the latter. Lumbrinerides acutus japonicu s is therefore thought to represent a juvenile phase of L. shimodaensis, which was recorded from the same locality. Imajima (1985) remarked that those specimens were similar to L. acuta, but differed in the number of anterior reduced parapodia, L. acuta having about ten reduced anterior parapodia, compared with four to six in L. acutus japonicus. The chaetal distribution of L. acuta is not comparable with other species because of damage to the anterior parts of the syntypes and consequent loss of most chaetae. The first occurrence of hooks in L. acuta has been termed ‘ middle body region’ by many authors (Pettibone 1963; Perkins 1979; Miura 1980; Uebelacker 1984). The types of L. acutus japonicus are also problematic for the taxonomic identification, because of the loss of many chaetae on the first several parapodia of the holotype. The exact taxonomic status of L. acutus japonicus thus remains unclear, despite the type series including damaged juvenile specimens of L. shimodaensis (based on their chaetal distribution). Biological notes. Some ovigerous specimens were collected from the Irago Strait, off Ago Bay in September 1984 and south part of the Sado Strait in September 1985. The spawning season of this species is therefore thought to be in late summer.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965102E77E4D95F9A808B4FDCB.taxon	distribution	Distribution. Off Shimoda (50 – 102 m), Irago Strait (120 – 150 m), off Ago Bay (102 – 158 m), off Misaki (110 – 122 m), off Susami, Bungo Channel (72 – 101 m), South Sado Strait (75 – 143 m), North Sado Strait (148 m) and around Tsushima (75 – 125 m), on sandy substrate, reported only in Japan.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965105E7604EC1FF3309BEFE0E.taxon	description	(Figs 11, 12)	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965105E7604EC1FF3309BEFE0E.taxon	materials_examined	Material examined. Holotype and paratype of Lumbrinerides hayashii, NSMT-Pol H- 195 and NSMT-Pol P- 196, respectively, both Wakasa Bay, 10 m, July 1970; 5 paratypes of Lumbrinerides dayi, USNM 55598, Florida, off Panama City, 47 m, coarse carbonate sand, November 1977. Comparative material. Lumbrineris aberrans Day, 1963 sensu Day (1973), DMLM 2481, off Beaufort, 5 – 20 m, 19 April 1965; Lumbrinerides dayi sensu Imajima (1985): NSMT-Pol 77735, off Shimoda, 60 – 68 m, 9 November 1981. Non-type material. (SOMA) (12 immature, 14 juveniles); (IMA A) (one female) and IMA B (one male, one juvenile); (SADO A) Tansei-maru Cruise KT- 85 - 14, Japan Sea, Station F- 5 BC- 2, (two immature); Station F- 5 SM- 1 (one immature); Station F- 5 SM- 2 (one female, one immature).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965105E7604EC1FF3309BEFE0E.taxon	diagnosis	Diagnosis. Prostomium up to three times longer than wide (Fig. 11 A). Two apodous peristomial rings. Six to ten anterior parapodia reduced (Fig. 11 A – C), thereafter fully developed (posteriorly from chaetigers 10 – 12) (Fig. 11 D, E). Maxillae I with two well-defined accessory teeth, maxillae II with three teeth (Fig. 11 F). Large specimens with more than 3 concentric lines on mandibles considered as adults (Fig. 11 G). Bidentate simple hooded hooks beginning on chaetigers 1 – 6 (Fig. 11 H). Variations. The prostomium length to width proportion in Japanese specimens varied between 1.14 – 2.23, slightly less than given in the original description, 1.2 – 3.0. The types of L. hayashii are immature and lack considerable posterior portions of the body. The chaetae were generally well preserved and their distribution in the type specimens and other material could be examined in detail (Fig. 12). Specimens collected off Imabetsu and off Soma and referred to this species had two accessory teeth on maxillae I, ten anterior reduced parapodia and simple hooks on chaetiger 1 – 3, being more intact in chaetal possession. The limbate chaetae started on the first chaetiger as two per parapodium in most specimens, the number becoming three on ca. parapodia 10 to 30 – 35, subsequently reducing to two on more posterior parapodia and one on ca. parapodia 80 – 130 (possibly depending on specimen size), and eventually zero on well posterior parapodia (Fig. 12). Hooks numbered two on parapodia 1 – 10 or somewhat later, one on ca. parapodia 10 to 30 – 35, and two or three on more posterior parapodia (Fig. 12).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965105E7604EC1FF3309BEFE0E.taxon	discussion	Remarks. In 26 specimens (12 immature, 13 juvenile and one damaged) collected from off Soma, the number of anterior reduced parapodia varied from seven to nine (Fig. 2), but fully developed parapodia were apparent on chaetiger 10 – 12, as given in the original description of L. dayi by Perkins (1979) and also in the description of L. hayashii by Imajima (1985). As no significant morphological differences were apparent in other characters between these two species, they are synonymized here. One of two Shimoda specimens recorded as L. dayi by Imajima (1985) was reexamined and its identification confirmed. Biological notes. The spawning season of L. dayi is thought to be in summer, based on the collection of an ovigerous female in August 1983 from off Imabetsu and another in September 1985 from south part of the Sado Strait.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965105E7604EC1FF3309BEFE0E.taxon	distribution	Distribution. Wakasa Bay (10 m), off Imabetsu (18 – 21 m), off Soma (38 – 46 m), South Sado Strait (52 – 58 m), on sandy substrates, Japan; off Panama City (47 m), off Beaufort (5 – 20 m), Atlantic coast of US.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	description	(Figs 13, 14)	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	materials_examined	Material examined. Holotype: NSMT-Pol H- 610, Seisui-Maru Cruise 1984 - R- 07, Station 402 B (intact female), Irago Strait, 34 ° 20.2 ′ N, 136 ° 60.0 ′ E, 39.2 m, 13 September 1984; 3 paratypes: NSMT-Pol P- 611 (one female, two immature), same site as holotype; seven paratypes: NSMT-Pol P- 611 (one female, six immature), Station 402 A, same site as holotype; three paratypes: NSMT-Pol P- 612 (two females, one immature), Station 502 A, Ago Inlet, 60.0 m, 16 September 1984. Non-type material. (EK A) Seisui-Maru Cruise 1984 - R- 07, Stations, 201 A (including two immature); 301 A (one immature, one juvenile) and 301 B (three immature, one juvenile); 302 A (one immature, one juvenile) and 302 B (one immature); 402 A (one juvenile); 403 A (two immature, one juvenile) and 403 B (one juvenile); 501 B (one male); 502 B (two immature); 701 B (one immature). (KII A) Tansei-Maru Cruise KT- 84 - 12, Station 11 - 2 (one immature); Station 12 - 1 (one immature). (BUNG) Tansei-Maru Cruise KT- 84 - 12, Stations 31 (three immature); 33 (one immature).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	description	Description. The holotype is an intact female measuring 20 mm long by 0.47 mm wide with 175 chaetigers. Prostomium 1.94 times longer than wide. Peristomium comprising two apodous rings (Fig. 13 A). First five parapodia reduced (Fig. 13 D, E). Postchaetal lobes rounded with a very short projection on central outer edges between chaetigers 5 – 8 (Fig. 13 E, F). Projection becoming larger, fused with basal parts, being digitiform to conical from chaetiger 9 (Fig. 13 G – J). Limbate chaetae broadly limbate at least on first several parapodia, becoming narrower posteriorly. Limbate chaetae numbering two per parapodium on chaetigers 1 – 6, three on chaetigers 7 – 22, two on chaetigers 23 – 87 and one on chaetigers 88 – 126 (Fig. 14). Far posterior parapodia on chaetigers 127 – 173 lacking limbate chaetae (Fig. 13 J). A single limbate chaeta on each parapodium on last chaetiger in holotype (Fig. 14). Simple bidentate hooded hooks beginning on chaetiger 1, two per parapodium on chaetigers 1 – 6, one on chaetigers 7 – 22, two on chaetigers 23 – 26, three (sometimes two or four) on chaetigers 27 – 174 and none on chaetiger 175 in holotype (Fig. 14). Mandibles with four concentric lines on anterior flared end in holotype, but sometimes eight in larger specimens of 0.66 mm width (Fig. 13 C). Maxillae I with a single well-defined accessory tooth (Fig. 13 B). Maxillae II with three blunt teeth on both plates. Maxillae III lacks defined teeth. Maxillae IV comprising long oval plates without teeth. Biological notes. The spawning season of this species is thought to be in summer since a collection in September 1984 (EK A) included matured specimens with fully developed gametes. Variations. Accessory teeth on maxillae I usually numbered one (rarely two) on one or both sides. In the case of two accessory teeth on each maxilla I, such were intermeshed with only one being well developed whereas the remaining tooth could be recognized only from their internal cavities found in the medulla of maxillae I. The prostomium length to width proportion varied from 1.3 to 2.6. First simple hooks always occurred at the first parapodium, the number of anterior reduced parapodia varying between four and six. Well developed parapodia with prolonged postchaetal lobes began from chaetigers 7 – 11 (chiefly 9 – 10).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	discussion	Remarks. This species differs from other Japanese species in having a combination of character states, such as having only one accessory tooth on maxillae I in general, a small number of anterior reduced parapodia and simple hooks starting on chaetiger 1. Lumbrinerides dayi differs from the new species in having ten anterior reduced parapodia instead of four to six. One of the specimens identified as L. dayi by Imajima (1985) may in fact be referred to this new species, due to having six anterior reduced parapodia, a single accessory tooth on maxillae I and hooks starting on anterior parapodia (parapodium 4 in an Imajima’s damaged specimen).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	etymology	Etymology. The new species is named for Dr Kristian Fauchald, Research Zoologist at the Smithsonian Institution, who encouraged me at the beginning of my scientific life and passed away 4 April 2015.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511BE7614C52FE5F0AC3FE0E.taxon	distribution	Distribution. Off Hamana Lake (40 – 41 m), off Tawara (40 – 61 m), Irago Strait (39 – 80 m), Ago Bay (39 – 60 m), off Kumano River (39 m), off Susami, Kii Channel (73 – 101 m), off Tsukumi, Bungo Channel (72 – 76 m), on sandy substrates, Pacific coast of Japan; East China Sea (40 m).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	description	(Figs 15 – 17) Lumbrineriopsis sp.: Tamai et al. 1989: appendix table 2.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	materials_examined	Material examined. Holotype: NSMT-Pol H- 613 (immature) and 14 paratypes: NSMT-Pol P- 614 (14 immature) Tenryu River mouth, 34 ° 38.1 ′ N 137 ° 47.6 ′ E, 5 – 10 m, 5 May 1983. 19 paratypes: NSMT-Pol P- 615 (four males, 15 immature), Tosa Bay, 15 m, 26 November 1980; four paratypes: NSMT-Pol P- 616 (one female, three immature), same site, 23 December 1980; 20 paratypes: NSMT-Pol P- 617 (20 immature), same site, 8 June 1981. Non-type material. (Tenryu) 14 juveniles, same site and date as holotype; (Tosa N) five juveniles; (Tosa D) one juvenile; (Tosa J) 10 juveniles.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	description	Description. The holotype comprises an anterior body fragment (0.76 mm wide) with 71 chaetigers. One of paratypes NSMT-Pol P- 615 from Tosa Bay is an incomplete male (ca. 50 mm long, 0.64 mm wide) with 188 chaetigers with some caudal chaetigers missing. Another paratype NSMT- Pol P- 616 from Tosa Bay in December 1980 is an intact female with a discoidal pygidium (Fig. 15 B). Prostomium length about 1.2 times width in holotype, 1.1 – 2.7 in paratypes (Figs 2, 15 A). Peristomium comprising two apodous rings. First 11 parapodia reduced. Parapodia fully developed posteriorly on chaetiger 12 in holotype and on chaetigers 11 – 13 in paratypes (Fig. 15 G, H). First 11 parapodia with two broadly limbate chaetae in holotype, thereafter three per parapodium becoming two on chaetigers 32 – 71. Relatively undamaged and smaller paratypes with a single limbate chaeta on each parapodium on posterior chaetigers, eventually being lost (Fig. 16). Holotype with simple bidentate hooded hooks on chaetiger 1 (Figs 16, 17), two per parapodium on first 11 chaetigers, one on chaetigers 12 – 21, two or three on subsequent chaetigers. Mandibles with five concentric lines in holotype, five to eight in adult paratypes (Fig. 15 D). Maxillae I with three weakly projected accessory teeth with pulp cavities in holotype, two or three in paratypes (Fig. 15 C). Maxillae II with three blunt intermeshing teeth on both plates. Biological notes. Specimens from Tosa Bay, reported as Lumbrineriopsis sp. by Tamai et al. (1989), included specimens with sperm or eggs in the coelom during November and December in 1980 when water temperatures fell to below 20 ° C (Tamai et al. 1989: 73, fig. 13). The spawning season of this species is thus thought to be in winter. Variations. The number of accessory teeth on Maxillae I varied between two and three in the Tosa Bay population, the maxillae occasionally having asymmetrical forceps (Fig. 15 C). In such a case, the left side tends to have three teeth and the right two. Tosa Bay specimens with two accessory teeth on one side of Maxillae I were dominant (56 %), but those with three teeth on both sides were dominant (79 %) in the Tenryu River mouth population (Fig. 2). Well-developed parapodia with prolonged postchaetal lobes started from chaetigers 11 – 13 in adults, but from chaetiger 8 in a small juvenile (0.3 mm wide).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	discussion	Remarks. This species is unique among its congeners in having three accessory teeth on at least one side of Maxillae I. It also spawns in Winter, unlike, for example, L. shimodaensis, L. hayashii, and L. kristiani spawning in Summer.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	etymology	Etymology. The new species is named for Dr K. Tamai who kindly donated specimens collected from Tosa Bay.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D58796511AE7624C4BFE5F0A04F815.taxon	distribution	Distribution. Tenryu River mouth (10 m); Tosa Bay (15 m), sandy substrate, Pacific coast of Japan.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	description	(Figs 18, 19)	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	materials_examined	Material examined. Holotype: NSMT-Pol H- 618, off Tomakomai, Hokkaido, 42 ° 36.7 ′ N 141 ° 37.6 ′ E, 10 – 20 m, fine muddy sand, June 1986; 10 paratypes: NSMT-Pol P- 619, 10 immature, same site and date as holotype. Non-type material. (TOMA) 19 juveniles, same site and date as holotype.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	description	Description. The holotype (29.3 mm long by 0.86 mm wide) has 54 chaetigers (many posterior chaetigers lost). Prostomium length 3.13 times width in holotype, greater than twice width in most adults (Fig. 18 A). Peristomium comprising two apodous rings. Nine anterior parapodia reduced, subsequent postchaetal lobes becoming larger, fully developed parapodia on chaetiger 12 or more posteriorly (Fig. 18 D). First nine or ten parapodia with two broadly limbate chaetae when intact (Fig. 19). Three limbate chaetae per parapodium on chaetigers 11 – 30 or somewhat posteriorly, sometimes four or five limbate chaetae on a single parapodium. One or two limbate chaetae on chaetiger 40 or more posteriorly. Simple bidentate hooded hooks begin on first parapodium, two per parapodium on the first nine to eleven parapodia, one on chaetigers 12 – 32, two or three on chaetigers 32 and posteriorly in holotype (Fig. 19). Mandibles with six concentric lines in holotype, four to nine in large paratypes (Fig. 18 C). Maxillae I with two weakly projected accessory teeth with internal cavities on both forceps in all type specimens (Fig. 18 B). Maxillae II with three blunt intermeshing teeth on both plates. Biological notes. All of the specimens from Tomakomai lacked a considerable number of posterior chaetigers. Although maturation details are unknown, the presence of some posterior fragments with oocytes in the collection indicated a spawning season near early summer. The collection comprised two clearly defined size classes of specimens (Fig. 2). Eleven larger specimens (0.83 – 0.99 mm in body width) were thought to be adults, their mandibles having four to nine concentric lines on the cutting edges. The remaining 19 juvenile specimens (0.36 – 0.66 mm in body width) had two to four such concentric lines. Variations. The number of anterior reduced parapodia varied from eight to ten in adult specimens and seven to nine in juveniles. The prostomial length to width proportion was slightly higher in larger specimens (1.99 – 3.42, average 2.39) compared 1.90 – 3.55 (average 2.34) in juveniles. The first hooded hooks always began on chaetiger 1. The number of accessory teeth on Maxillae I was two in most specimens except for one with three teeth on both forceps. Maxillae II always had three intermeshing teeth in each plate.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	discussion	Remarks. This new species has a uniquely long prostomium among Japanese species. Although Lumbrinerides acutiformis from Nha Trang also has a very long prostomium, the proportion of length to width is 3.5 – 4.0, greater than that of adults of the new species (1.99 – 3.42).	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	etymology	Etymology. The new species epithet is named for Yoshio Miura, my late father, who had been in Tomakomai city and supported in part my stay in France for the lumbrinerid study.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
03D587965119E7634EB1FBA00D1FF9F9.taxon	distribution	Distribution. Off Tomakomai, Hokkaido (10 – 20 m), Pacific coast of Japan, known only from the type locality.	en	Miura, Tomoyuki (2017): Classification and Morphological Variations of the Japanese Species of Lumbrinerides (Annelida: Lumbrineridae). Species Diversity (Auckland, N. Z.) 22 (1): 7-27, DOI: 10.12782/sd.22_7, URL: http://dx.doi.org/10.12782/sd.22_7
