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Notropis bocagrande, a New Cyprinid Fish from Chihuahua, Mexico, with Comments on Notropis formosus

Barry Chernoff and Robert Rush Miller
Copeia
Vol. 1982, No. 3 (Aug. 10, 1982), pp. 514-522
DOI: 10.2307/1444650
Stable URL: http://www.jstor.org/stable/1444650
Page Count: 9
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Notropis bocagrande, a New Cyprinid Fish from Chihuahua, Mexico, with Comments on Notropis formosus
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Abstract

A new species of Notropis (subgenus Cyprinella) is described from a single spring in the Guzmán Basin of northwestern Mexico. It differs from N. formosus and other members of the N. lutrensis-complex in body size and conformation, color, pigmentation, nuptial tubercles, but most notably in its long jaws which extend under the orbit. In addition, the taxonomic status of populations of N. formosus is examined, with the conclusion that it is a highly variable species. Subdivision of N. formosus into species or subspecies seems unjustified.

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