BioStor
Poecilia sphenops Valenciennes, 1846
 | A collection of freshwater fishes made by Mr. C. F. Underwood in Costa Rica C T Regan (1908) Annals and Magazine of Natural History 2: 455-464 |
 | A revision of the Cyprinodont fishes of the sub-family Poecilunae C Tate Regan (1913) Proceedings of The Zoological Society of London 1913: 977-1018 |
 | An annotated list of fishes known to occur in the fresh waters of Costa Rica Seth Eugene Meek (1914) Chicago Field Museum of Natural History Pub Zool Ser 10: 101-134 |
 | Catalogue of type specimens of recent fishes in Field Museum of Natural History Myriam Ibarra and Donald J Stewart (1987) Fieldiana Zoology (N. S.) 35: 1-112 |
 | Geographic variation in Poecilia Bloch & Schneider, 1801 (Teleostei: Poeciliidae), with descriptions of three new species and designation of lectotypes for P. dovii Günther, 1866 and for P. vandepolli van Lidth de Jeude, 1887 F N Poeser (1993) Proceedings of The Biological Society of Washington 116: 356-379 |