Gobiesox lanceolatus, a new species of clingfish (Teleostei: Gobiesocidae) from Los Frailes submarine canyon, Gulf of California, Mexico
Gobiesox lanceolatus, a new species of clingfish (Teleostei: Gobiesocidae) from Los Frailes submarine canyon, Gulf of California, Mexico
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DOI：
10.11646/zootaxa.4221.3.8
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发表时间：
2017-01-18
期刊：
影响因子：
0.9
通讯作者：
Conway, Kevin W.
中科院分区：
文献类型：
--
作者：
Hastings, Philip A.;Conway, Kevin W.
从加州湾西南部的洛斯弗赖莱斯海底峡谷300米深处采集的单一标本中描述了Gobiesox lanceolatus。“峡谷攀鲈”在Gobiesox中是独一无二的，它有一个披针形的尾鳍，中央的鳍条比上面和下面的鳍条都长。背鳍条14条（第一条细小且不分节），肛鳍条11条，胸鳍条28条，肛门比骨盆盘后缘更靠近肛鳍起点，背鳍起点在肛门垂直方向的前方。它与产于外下加利福尼亚和南加州海岸的瓜德罗普岛的Gobiesox eugrammus最为相似。这是一种Gobiesox的最深记录，只有四种其他种类的粘鱼在更深的地方被发现。
Gobiesox lanceolatus is described from a single specimen collected from 300 meters depth in the Los Frailes submarine canyon in the southwestern Gulf of California. The "Canyon Clingfish" is unique within Gobiesox in having a lanceolate caudal fin, with the central rays longer than those above and below them. It is also distinguished by 14 dorsal-fin rays (first tiny and unsegmented), 11 anal-fin rays, 28 pectoral-fin rays, anus slightly closer to anal-fin origin than to posterior margin of pelvic disc, and dorsal-fin origin in front of vertical from anus. It is most similar to Gobiesox eugrammus, known from Isla Guadelupe, the coast of outer Baja California and southern California. This is the deepest record for a species of Gobiesox and only four other species of clingfishes are known from greater depths.