Synonyma
Furcipenis Hubbs, 1931 ― Priapichthys huberi Fowler, 1923
Hubbs, C. L. 1931. Studies of the fishes of the order Cyprinodontes. IX. A new and primitive genus of Poeciliidae from Central America. Occasional Papers of the Museum of Zoology University of Michigan No. 230: 1-3.
Petalosoma Regan, 1908 ― Petalosoma cultratum Regan, 1908
Regan, C. T. 1908. A collection of freshwater fishes made by Mr. C. F. Underwood in Costa Rica. Annals and Magazine of Natural History (Series 8) v. 2 (no. 11): 455-464.
Petalurichthys Regan, 1912 ― Petalosoma cultratum Regan, 1908
Regan, C. T. 1912. A revision of the poeciliid fishes of the genera Rivulus, Pterolebias, and Cynolebias. Annals and Magazine of Natural History (Series 8) v. 10 (no. 59): 494-508.
Typový druh
Alfaro acutiventralis Meek, 1912.
Původní popis
Meek, S. E. 1912. New species of fishes from Costa Rica. Field Museum of Natural History, Publications, Zoölogical Series v. 10 (no. 7): 69-75.
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2024. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.