Galindo-Villegas, J. and Sosa-Lima, F. 2002. Gonopodial system review and a new fish record of <i>Poeciliopsis infans</i> (Cyprinodontiformes: Poeciliidae) for Lake Patzcuaro, Michoacan, central Mexico. Revista de Biología Tropical. 50, 3-4 (Dec. 2002), 1151–1157.