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Astyanax fasciatus may be characterized as a chromosomally diversified 'species' presenting distinct cytotypes, each with its specific variants. The sympatric and syntopic occurrence of different(More)
The genus Astyanax comprises small characin fish of the neotropical region. The so-called 'yellow-tailed characins' compose one of the most widely distributed Astyanax groups. A. altiparanae and A.(More)