| About 45
species of freshwater fishes found in North America from southern Canada
to Guatemala. They are scaleless (Nelson
1994). Their possession of barbels as well as their nocturnal
habits might be argued to be preadaptive features. Four unrelated eyeless
species are known from deep wells and caves. All four species show a
remarkable convergence of features that include the lack of externally
visible eyes, depigmentation, and reduced lateral line (Walsh
& Gilbert 1995). |
|
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Prietella lundbergi
Walsh & Gilbert, 1995
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Prietella phreatophila
Carranza, 1954
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Satan eurystomus
Hubbs & Bailey, 1947
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Trogloglanis pattersoni
Eigenmann, 1919
Burr et al (2001) reported Ictaurus
punctatus and Ameiurus natalis for Mystery Cave, Perry County,
Missouri. |