Onilahy River
| Onilahy River | |
| River | |
 Onilahy River estuary | |
| Country |  Madagascar |
|---|---|
| Cities | Mandrofify, Ambolofoty |
| Source | |
| - location | near Betroka |
| Mouth | Bay of Saint-Augustin |
| - location | Saint Augustin, Mozambique Channel |
| Length | 525 km (326 mi) |
 Map of Malagasy rivers (Onilahy flows from the south-central part to the southwestern coast).
| |
Onilahy is a river in Toliara Province, southern Madagascar. It flows down from the hills near Betroka to the Mozambique Channel. It empties at St. Augustin (23°34′00″S 43°45′00″E / 23.5666667°S 43.75°ECoordinates: 23°34′00″S 43°45′00″E / 23.5666667°S 43.75°E), and into the Bay of Saint-Augustin.
Two species of cichlids are endemic to the river basin, but Ptychochromis onilahy is probably already extinct[1] and the remaining range of Ptychochromoides betsileanus covers less than 10 square kilometres (3.9 sq mi).[2]
References
- ↑ Stiassny, M., and Sparks, J. S. (2006). Phylogeny and Taxonomic Revision of the Endemic Malagasy Genus Ptychochromis (Teleostei: Cichlidae), with the Description of Five New Species and a Diagnosis for Katria, New Genus. American Museum Novitates 3535.
- ↑ Loiselle, P. & participants of the CBSG/ANGAP CAMP "Faune de Madagascar" workshop 2004 (2004). "Ptychochromoides betsileanus". IUCN Red List of Threatened Species. Version 2011.1. International Union for Conservation of Nature. Retrieved 14 July 2011.
| ||||||