Balsas livebearer (Poeciliopsis balsas) from Rio del Marqués, Balsas drainage, Mexico (Hubbs, 1926). Described by Rosen & Bailey, 1963.
Named for Río Balsas basin (Guerrero, México), where Hubbs believed it was apparently confined (also occurs in ríos Arteaga and Aguililla [Jalisco, Michoacán, Morelos, Puebla]).



Named for Río Balsas basin (Guerrero, México), where Hubbs believed it was apparently confined (also occurs in ríos Arteaga and Aguililla [Jalisco, Michoacán, Morelos, Puebla]).










