Onilahy River

Onilahy River
River
Country Madagascar
Source
 - location near Betroka
Mouth
 - 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 .

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

  1. ^ 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.
  2. ^ 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. http://www.iucnredlist.org/apps/redlist/details/18832. Retrieved 14 July 2011. 
Rivers