Zoogoneticus
Zoogoneticus is a genus of splitfins that are endemic to the Lerma–Chapala–Grande de Santiago, Armería, Ameca, Cuitzeo and Zacapu basins in west-central Mexico. They inhabit lakes, streams, ponds, canals and ditches, and prefer shallow waters with no or only a moderate current. They are predators that feed on small invertebrates. "Zoogoneticus" are fairly small fish, reaching up to in total length. Species. There are currently three recognized species in this genus: