Mexican Tetra and Similar Species
Astyanax mexicanus
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Open the appSeveral fish can be confused with Mexican Tetra. Here are the key differences.
Species often confused with {name}
Blind Cave Characin
Anoptichthys jordani
Key differences: Historically considered a separate genus/species for the blind cave form, 'Anoptichthys jordani' is now widely recognized as a junior synonym of Astyanax mexicanus, representing the cave morphotype. Genetically, they are the same species.
Other Astyanax species
Various Astyanax spp.
Key differences: Many other Astyanax species exist throughout Central and South America. Differentiation often requires detailed examination of fin ray counts, tooth morphology, and genetic analysis. A. mexicanus is primarily distinguished by its specific geographic range and the existence of the blind cave morph.
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