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首页> 外文期刊>Bulletin of the National Science Museum. Series A, Zoology >Two New Species of the Gobiid Fish Genus Eviota (Teleostei, Perciformes, Gobioidei) from the Western Pacific
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Two New Species of the Gobiid Fish Genus Eviota (Teleostei, Perciformes, Gobioidei) from the Western Pacific

机译：西太平洋的戈壁鱼属的两个新种（Teleostei，Perciformes，Gobioidei）

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摘要

Two new species of the gobiid fish genus Eviota, i.e., E. korechika and E. ocellifer, are described based on specimens from the West Pacific Ocean. E. korechika (19 type series and 9 non-type specimens, 12.3-24.4 mm SL, Ryukyu Archipelago, Japan, and Sulawesi, Indonesia) belongs to the subgroup bearing complete cephalic sensory-canal pore configuration for Eviota [i.e., pores B′, C (unpaired), D (unpaired), E, F, H′, N′ and O′]; it differs from the other 18 described species of this subgroup in having the following combination of characters: usually 9 and 8 dorsal-and anal-fin segmented rays, respectively; well-developed membranes between pelvic-fin segmented rays; edge of scale pockets densely pigmented, forming dusky reticulations on body; a narrow arc-shaped, diagonal pale band (subtranslucent in preserved specimen) at middle of first dorsal fin; 5-7 diagonal bright-blue to pale-blue bars (translucent and sometimes quite indistinct in preserved specimens) on second dorsal and anal fins in each; two ovoid dusky spots on dorsal and ventral parts of pectoral-fin base; no enlarged, distinct subcutaneous dusky spot on mid-lateral caudal peduncle; caudal fin without any conspicuous dusky markings. E. ocellifer (7 specimens, 16.4-18.4 mm SL, Iriomote-jima Island, Yaeyama Islands of Ryukyu Archipelago, Japan) is similar to E. lacrimae and E. sparsa in lacking preopercular canal and associated pores of cephalic sensory systems, but differs from the latter two in having moderately developed fifth pelvic-fin ray (10.5-18.1% of preceding ray in length) and a conspicuous semi-ocellated spot at anteroventral part of first dorsal fin.
机译：基于来自西太平洋的标本，描述了戈壁鱼属的两个新物种Eviota，即E. korechika和E. ocellifer。 E. korechika（19个系列和9个非类型标本，SL，12.3-24.4 mm，日本琉球群岛和印度尼西亚苏拉威西岛）属于带有完整的头颈部感觉管孔结构的亚类，即Eviota [即孔B' ，C（未配对），D（未配对），E，F，H'，N'和O']；它与该亚组的其他18个物种不同，具有以下特征组合：通常分别有9和8个背鳍和肛门鳍分段射线；骨盆鳍分段射线之间的膜发达；鳞片袋的边缘浓密地色素沉着，在身体上形成暗淡的网状结构；第一背鳍中间的一条狭窄的弧形斜对角浅带（在保存的标本中为半透明）；每个背鳍和肛门鳍上有5-7个对角的鲜蓝色至淡蓝色条（半透明，有时在保存的标本中不太明显）；在胸鳍基部的背面和腹侧部分有两个卵形的暗点；中外侧尾柄上没有扩大的，明显的皮下暗点；尾鳍没有明显的暗淡斑纹。大肠杆菌（日本标本岛八重山岛西表岛岛西表岛的7个标本，16.4-18.4毫米SL）与大肠杆菌（E. lacrimae）和稀疏大肠杆菌（E. sparsa）相似，因为它缺少前眼睑管和相关的头孔感觉系统毛孔，但有所不同与后两者相比，具有中等发育的第五个骨盆鳍射线（长度为先前射线的10.5％至8.1％），并且在第一背鳍的前腹部分有明显的半网状斑点。

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