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Class Osteichthyes
Order Cyprinodontiformes
Family Poeciliidae


Regional Pleistocene distribution of Poeciliopsis occidentalis or Poeciliopsis monacha-occidentalisPoeciliopsis occidentalis or Poeciliopsis monacha-occidentalis—Gila Topminnow or All-female Topminnow

Poeciliopsis monacha-occidentalis is used to designate an all-female form of the Gila Minnow (Van Devender et al. 1985). Both this form and P. occidentalis occur at La Brisca today (Van Devender et al. 1985).


Sangamon: La Brisca (Van Devender et al. 1985).

Literature Cited. Van Devender et al. 1985.


Last Update: 5 Nov 2008