Photographs and map of the geographic distribution of four sailfin mollies and one shortfin molly. The sailfin mollies are P. latipinna ((a) dark blue), P. latipunctata ((b) red), P. velifera ((c) green), and P. petenensis ((d) light blue), and the shortfin molly is P. mexicana ((e) orange). The collecting locations for the three species used in this study are indicated by the filled stars. Photos were taken by David Lewis.