A new species of the deep‐sea eel genus Ilyophis Gilbert (Synaphobranchidae) from the eastern North Atlantic, with comments on its ecology and intrafamilial relationships
A new species of the deep‐sea eel genus Ilyophis Gilbert (Synaphobranchidae) from the eastern North Atlantic, with comments on its ecology and intrafamilial relationships
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北大西洋东部深海鳗鱼属 Ilyophis Gilbert（Synaphobranchidae）的一个新种及其生态学和科内关系的评论
DOI：
10.1111/j.1095-8649.1982.tb02866.x
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发表时间：
1982
影响因子：
2
通讯作者：
N. Merrett
中科院分区：
文献类型：
--
作者：
L. Saldanha;N. Merrett
描述了北大西洋东部黄鳗的一新种--伊里奥菲斯·布拉赫伊。其特征为179~188节椎体，背鳍在胸鳍延伸尖端后方插入一半(或更多)的口吻长度，颧裂自胸底前腹斜倾，圆形后鼻孔前缘有明显的三角形瓣、长侧线(87~95%)、眶上管5~6孔、眶下7~8孔和下颌前10~11孔，眶上和额上连合分别有1孔和3孔。对伊利奥菲斯属的诊断被扩展到包括这些特征。根据这一新证据，讨论了该属在异形虫亚科和异形虫亚科之间的过渡位置。Ilyopphesblachei出现在下陆坡(1247-2070m测深)上，温度范围为7.0−3.3°C，还报道了在大西洋首次记录到的I.arx。
A new species of synaphobranchid eel, Ilyophis blachei, is described from the eastern North Atlantic. It is distinguished by 179–188 vertebrae, dorsal fin inserted half (or more) of the snout length posterior to extended tip of pectoral fin, gill slits obliquely inclined anteroventrally from pectoral base, rounded posterior nostril bordered anteriorly by conspicuous triangular flap, long lateral line (87–95% S.L.), supraorbital canal pores 5–6, infraorbital 7–8 and preoperculomandibular 10–11, supraorbital and supratemporal commissures with 1 and 3 pores, respectively. The diagnosis of the genus Ilyophis is extended to embrace these characters. The transitional position of the genus between the subfamilies Synaphobranchinae and Dysomminae is discussed in the light of this new evidence. Ilyophis blachei occurs on the lower continental slope (1247–2070 m soundings) within the temperature range c. 7.0−3.3°C. The first record of I. arx in the Atlantic Ocean is also reported.