Also called the Cauca Molly, the South American Molly can be found in parts of Panama, Columbia and Venezuela. This species typically inhabits shallow bodies of water that is slightly more alkaline than acidic. These fish are relatively devoid of color but can be identified by the black spot at the base of the dorsal fin. The overall coloration of this species is silver to light yellow and males of the species may exhibit yellow coloring on the fins during reproductive periods. Some specimens have also been known to show thin transverse bands running along the body.