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Mexican tetra
The
Mexican tetra
or
blind cave fish
(
Astyanax mexicanus
) is a
freshwater
fish
of the
family
Characidae
of the
order
Characiformes
. The
type species
of its
genus
, it is native to the
Nearctic
ecozone
, originating in the lower
Rio Grande
and the
Neueces
and
Pecos Rivers
in
Texas
, as well as the central and eastern parts of Mexico.
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