This is a highly diversified
(ca. 900 species) of freshwater fishes from America and Africa (Nelson
1994). They show no apparent morphological and/or behavioral
preadaptation to the hypogean environment. It is somewhat surprising
that more representatives of this family have not been found in caves
given its ample distribution and high diversity. Most Characids are
completely covered with cycloid scales. There are at least two species of
troglomorphic characids.
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1. Astyanax fasciatus species
complex (Cuvier, 1819)
2. Stygichthys typhlops Brittan & Böhlke, 1965 |