A New Southern Caribbean Species of Angel Shark (Chondrichthyes, Squaliformes, Squatinidae), Including Phylogeny and Tempo of Diversification of American Species

被引:14
作者
Acero P, Arturo [1 ]
Tavera, Jose J. [2 ]
Anguila, Rafael [3 ]
Hernandez, Luis [1 ]
机构
[1] Univ Nacl Colombia, CECIMAR, Inst Estudios Ciencias Mar, El Rodadero, Santa Marta, Colombia
[2] Univ Valle, Dept Biol, Cali, Colombia
[3] Biologos Colombia, Barranquilla, Colombia
关键词
GENUS SQUATINA; NEOSELACHII;
D O I
10.1643/CI-15-292
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
A new species of Squatina, S. david, is described from the Colombian Caribbean. The new species differs from all the western North Atlantic angel sharks by lacking a mid-dorsal line of thorns or enlarged dermal denticles, by having an eye-spiracle distance larger than 1.5 times eye diameter, and each nasal flap with two rod-like barbels. Coloration is grayish to brownish yellow, males are dark-spotted, females have abundant whitish spots. Squatina david is nested within the American clade of angel sharks, being the sister species to the Brazilian species.
引用
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页码:577 / 585
页数:9
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