Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan Author Iwamoto, Tomio Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA; Author Nakayama, Naohide Laboratory of Marine Biology, Faculty of Science, Kochi University, 2 - 5 - 1 Akebono-cho, Kochi, 780 - 8073, Japan; Author Shao, Kwang-Tsao Research Center for Biodiversity, Academia Sinica No. 128, Sec. 2, Academia Road, Nankang, Taipei 115, Taiwan; Author Table, Hsuan-Ching Ho text Proceedings of the California Academy of Sciences 2015 2015-04-15 62 3 31 126 journal article 299670 10.5281/zenodo.11512126 522b8de7-880d-40ca-803e-aa5a3a05c5f6 0068-547X 11512126 Gadomus colletti Jordan and Gilbert, 1904 Gadomus colletti Jordan and Gilbert , 1904:603–604 ( holotype USNM 50930 , Albatross sta. 3721, Suruga Bay , Japan ; 207–250 fm [ 379–457 m ]).— Gilbert and Hubbs , 1916:154–155 (descr.; 4 spec. , 68–302 TL; Suruga Gulf , 211–293 fm [ 386–536 m ]); Gilbert and Hubbs, 1920:392 (in key).— Okamura, 1970:23–26 , pl. I, fig. a; text-fig. 12A, 13 (descr., 44 spec. , 177–322 TL); s. Japan , 360–547 m ).— Howes and Crimmen , 1990:199 (descr. based on holotype and USNM spec.).— Chiou et al., 2004b:43 , fig. 8 ( 2 spec. , NET ).— Shao et al., 2008 : table 2 ( 5 spec. , NET , SCS ). Bathygadus colletti : Weber, 1913:172 (listed). MATERIAL EXAMINED ( 6 spec. ).— NET : ASIZP 61223 (1, 79 HL, 363 TL) ; Da-xi; ASIZP 61224 (1, 82.7 HL, 382 TL) ; Da-xi; ASIZP 65636 (1, 68.1 HL, 352 TL) ; CD 214, 488– 1027 m ; Da-xi . ASIZP 70251 (1, 90 HL, 346 TL) ; Da-xi. SWT : ASIZP 65513 (1, 200+ TL) ; CP 130, 709– 728 m . Other specimens: Japan : HUMZ 37408 (1, 29.8 HL, 146+ TL). DISTINGUISHING FEATURES .— A species of Gadomus with chin barbel about 2/3 of HL or slightly longer; elongated ray in 1D, P and V often longer than HL; 1D II,10–11; P (i16) i18–i21; V 8; outer gill rakers lathlike but relatively short, bluntly tipped, (4–5)+(8–21) ( ASIZP 61224 had 1 rudiment and 5 developed rakers on upper arm, 16 developed and 3 rudiments on lower arm); pyl. caeca small, numerous, about 95 to 165. Interorbital width 14–18% HL; orbit diameter 22–23%; upper jaw length 51–58%; chin barbel 57–91%; 1D spinous ray less than twice HL. Color relatively pale, mouth and gill cavity dark but paler on outer margins; lips and barbel whitish; fins dusky to blackish, dorsal fins lighter basally. DISTRIBUTION .— Southern Japan to Taiwan ( NET , SWT ) in 488–1027 m . REMARKS .— This species was first recorded from Taiwan by Chiou et al. (2004b:43) . Our four specimens appeared to have a somewhat shorter barbel (57–91% of HL) than reported by others. Okamura (1970:24) recorded their length as 0.9–1.2 into HL in 44 specimens from Japan , “about as long as, or a little shorter than, length of head” in 10 specimens from the Kyushu-Palau Ridge and Tosa Bay ( Okamura 1982:345 ), and 75–91% HL in five specimens from the Okinawa Trough ( Okamura 1984:356 ).