Differentiating cave Aspidoras catfish from a karst area of Central Brazil, upper rio Tocantins basin (Siluriformes: Callichthyidae)

被引:5
|
作者
Secutti, Sandro [1 ]
Reis, Roberto E. [2 ]
Trajano, Eleonora [1 ]
机构
[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, BR-05422970 Sao Paulo, Brazil
[2] Pontificia Univ Catolica Rio Grande do Sul, Lab Sistemat Vertebrados, BR-90619900 Porto Alegre, RS, Brazil
关键词
Aspidoras albater; Cave fish; Goias State; Neotropical; Population differentiation; SUBTERRANEAN FISHES; ECOLOGY; RIVER; SHAPE;
D O I
10.1590/S1679-62252011005000045
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Two cave populations of Aspidoras albater catfish with reduced eyes and pigmentation were recently found near the city of Posse, Sao Domingos karst area, Goias State, representing the first known case of a troglomorphic callichthyid catfish. Cave specimens are described and compared to epigean specimens of A. albater, but morphometric differences between the epigean and the cave populations are not adequate to delimit as distinct species.
引用
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页码:689 / 695
页数:7
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