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Poeciliidae
Usumacinta molly
Poecilia kykesis
Males display enlarged dorsal fin
Poecilia kykesis, also known as the Usumacinta molly, Petén molly, spiketail molly, or swordtail molly, is a poeciliid fish species native to the fresh and brackish waters of Mexico, Guatemala, and Belize. It belongs to the sailfin molly clade, with males exhibiting an enlarged dorsal fin. The species has a complex and controversial naming history, with the former name, Poecilia petenensis, now referring to a short-finned molly species.
- Class
- Teleosts
- Family
- Poeciliidae
- Genus
- Poecilia
- Maximum length
- 13 cm
- Distribution
- North Central America: Guatemala (from the tributary of Rio Usumacinta and nearby lakes, Péten) to Mexico (Yucatan Peninsula).
- Conservation status
- LCLeast Concern
