Redescriptions of two western Pacific triplefins (Perciformes: Tripterygiidae), Enneapterygius fuscoventer and E. howensis
Redescriptions of two western Pacific triplefins (Perciformes: Tripterygiidae), Enneapterygius fuscoventer and E. howensis
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两种西太平洋三鳍鱼（鲈形目：雷公藤科）Enneapterygius fuscoventer 和 E. howensis 的重新描述
DOI：
10.1007/s10228-017-0612-5
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发表时间：
2018
影响因子：
1.2
通讯作者：
Motomura Hiroyuki
中科院分区：
文献类型：
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作者：
Tashiro Satokuni;Motomura Hiroyuki
对两种西太平洋三鳍鲑Enneapalus fuscoventerpluske 1997和E. howensischerke 1997（鲈形目：Tripleidae），在共有15-19个（通常为17）缺口侧线鳞片和下颌骨孔公式3-5 + 1 + 3-5（通常为4 + 1 + 4），除体色相似外，体有四条纵带，腹侧第一、二叉，背鳍膜半透明，臀鳍完全微黑，尾鳍微黑，边缘半透明。这些物种以前只从保存的标本中发现。通过对两种鱼的新标本和新鲜雌雄鱼的彩色照片的观察，以及与模式标本的比较，发现了一些新的特征，包括第二背鳍刺的颜色和数量、臀鳍软条、有孔的侧线鳞片和纵向鳞片列，这些特征被认为是新的鉴别特征。在日本南部和澳大利亚东部沿海分别有新记录。
Two western Pacific triplefins,Enneapterygius fuscoventerFricke 1997 andE. howensisFricke 1997 (Perciformes: Tripterygiidae), are similar to each other in sharing 15–19 (usually 17) notched lateral-line scales and the mandibular pore formula 3–5 + 1 + 3–5 (usually 4 + 1 + 4), in addition to similar coloration, viz. body with four vertical bands, the first and second forked ventrally, dorsal-fin membrane semi-transparent, anal fin entirely blackish, and caudal fin blackish with a semi-transparent margin. These species have previously been known only from preserved specimens. Examination of additional specimens plus color photographs of males and females of both species when fresh, and comparisons with type specimens resulted in several features, including coloration and counts of second dorsal-fin spines, anal-fin soft rays, pored lateral-line scales and longitudinal scale rows, being regarded as new diagnostic characters.Enneapterygius fuscoventerandE. howensishave been newly recorded from southern Japan and coastal eastern Australia, respectively.