首页> 外文期刊>Bulletin of the National Museum of Nature and Science >Phoxacromion kaneharai, a New Genus and Species of Gobiid Fish(Teleostei: Perciformes: Gobiidae) from the Ryukyu Islands, Japan
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Phoxacromion kaneharai, a New Genus and Species of Gobiid Fish(Teleostei: Perciformes: Gobiidae) from the Ryukyu Islands, Japan

机译:Phoxacromion kaneharai,一种来自日本琉球群岛的戈壁鱼的新属和种(Teleostei:Perciformes:Gobiidae)

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摘要

A new marine goby genus and species of the gobiid subfamily Gobiinae, Phoxacromion kaneharai, is described based on 7 specimens (15.9-21.9 mm SL) from the Ryukyu Islands, Japan. It is unique amongst the gobiine genera in having the expanded lateral wing of the cleithrum with a distinct, anterolaterally-directed triangular mid-lateral margin. Phoxacromion is similar to Palutrus in general morphology, but distinguished from the latter in having the following features (including the cleithral modification previously noted): no distinct mental frenum (vs. present in Palutrus); a short transverse sensory papillae row on middle of cheek (vs. replaced by a single papilla only); 9 and 8 segmented dorsal and anal-fin rays (vs. 7-8 and 6-7, respectively); more slender body (body depth at anal-fin origin 15.0-16.6% of SL vs. more than 17.0%). A putative close affinity of Phoxacromion with Palutrus and/or Drombus (particularly the slender nominal species D. simulus) is suggested. P. kaneharai is a secretive bottom dweller, found under rubbles on sandy or gravel bottoms in shallow protected bays.
机译:根据来自日本琉球群岛的7个标本(15.9-21.9 mm SL),描述了一种新的海洋虾虎鱼属和戈比犬亚科戈壁纲科的物种Phoxacromion kaneharai。它在戈壁犬属中是独特的,因为它有一个扩展的书皮侧翼,具有明显的,前外侧定向的三角形中外侧边缘。 Phoxacromion在总体形态上与Palutrus相似,但与后者的区别在于具有以下特征(包括先前提到的鞘修饰):没有明显的精神系带(与Palutrus中的存在相比);脸颊中央有一排短的横行感觉乳头(相对于仅由单个乳头代替); 9和8分段的背鳍和肛门鳍射线(分别为7-8和6-7);纤细的身材(肛门鳍处的身高为SL的15.0-16.6%,而SL为17.0%以上)。推测Phoxacromion与Palutrus和/或Drombus(特别是细长的名义物种D. simulus)具有亲和力。 P. kaneharai是一个秘密的底部居民,在受保护的浅海湾的沙质或砾石底部的瓦砾下发现。

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