来自北太平洋中部的绿眼鱼属（硬骨鱼纲：绿眼鱼科）一新物种。

A new species of the greeneye genus Chlorophthalmus (Teleostei: Chlorophthalmidae) from the central North Pacific.

作者信息

Fujiwara Kyoji, Wada Hidetoshi, Motomura Hiroyuki

机构信息

Graduate School of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima 890-0056, Japan..

出版信息

Zootaxa. 2019 Feb 14;4555(3):396-406. doi: 10.11646/zootaxa.4555.3.8.

DOI:10.11646/zootaxa.4555.3.8

PMID:30790925

Abstract

Chlorophthalmus imperator sp. nov. (Teleostei: Chlorophthalmidae) is described on the basis of nine specimens (98.1-174.8 mm SL) from the Emperor Seamount Chain in the central North Pacific. The new species is characterized by the following combination of characters: 49-51 lateral-line scales; 6 scale rows above lateral line; 3 + 19-22 = 22-25 (modally 22) gill rakers; outermost tooth patches of lower jaw with 6-14 large thorn-shaped teeth, the tips projecting in advance of lower-jaw profile; lower-jaw symphysis with two distinct moderately-sized projections; tongue without teeth; pelvic-fin origin vertically below 4th or 5th (usually 5th) dorsal-fin ray base; head length 26.7-28.9 (mean 27.7) % SL; snout length 6.9-7.7 (7.3) % SL; horizontal orbit diameter 11.9-12.9 (12.3) % SL; upper-jaw length 11.7-13.2 (12.6) % SL; maxillary depth 3.1-3.8 (3.4) % SL; pre-dorsal-fin length 34.2-36.6 (35.3) % SL; pre-pectoral-fin length 27.3-29.8 (27.9) % SL; anus to anal-fin origin length 27.3-29.9 (28.5) % SL; pectoral-fin length 21.0-24.9 (22.7) % SL.

摘要

新种帝王软腕鱼（Chlorophthalmus imperator sp. nov.，硬骨鱼纲：软腕鱼科）依据采自北太平洋中部帝王海山链的9个标本（体长98.1 - 174.8毫米）进行描述。新物种具有以下特征组合：侧线鳞49 - 51枚；侧线以上有6行鳞片；鳃耙3 + 19 - 22 = 22 - 25枚（多数为22枚）；下颌最外侧齿块有6 - 14枚大刺状齿，齿尖突出于下颌轮廓之前；下颌联合处有两个明显的中等大小的突起；舌无齿；腹鳍起点垂直位于第4或第5（通常为第5）背鳍鳍条基部下方；头长为体长的26.7 - 28.9%（平均27.7%）；吻长为体长的6.9 - 7.7%（7.3%）；水平眼径为体长的11.9 - 12.9%（12.3%）；上颌长为体长的11.7 - 13.2%（12.6%）；上颌深度为体长的3.1 - 3.8%（3.4%）；背鳍前长为体长的34.2 - 36.6%（35.3%）；胸鳍前长为体长的27.3 - 29.8%（27.9%）；肛门至臀鳍起点长为体长的27.3 - 29.9%（28.5%）；胸鳍长为体长的21.0 - 24.9%（22.7%）。