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Taxonomic Status of the Plains Killifish, Fundulus zebrinus

Stuart G. Poss and Robert Rush Miller
Copeia
Vol. 1983, No. 1 (Feb. 10, 1983), pp. 55-67
DOI: 10.2307/1444698
Stable URL: http://www.jstor.org/stable/1444698
Page Count: 13
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Taxonomic Status of the Plains Killifish, Fundulus zebrinus
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Abstract

Examination of meristic and morphometric variation in the plains killifish, Fundulus zebrinus, reveals strong clinal variation in the number of lateral scale rows, vertebrae, and dorsal and anal fin rays. This cline is oriented in a north-south direction. Measurements associated with the size of the eye also vary clinally. Fundulus kansae, thought to be distinguishable from F. zebrinus by virtue of more lateral scale rows, a smaller eye, and a narrower first infraorbital bone, is a junior synonym of F. zebrinus. The natural range of this species is from the Platte River Drainage of Nebraska, Wyoming and Colorado, southward to the Brazos and Colorado rivers in Texas and the Pecos River in New Mexico and Texas. Its present range has become considerably expanded as a result of introductions.

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