Onilahy River
| Mouth of the watercourse | Mozambique Channel  |
|---|---|
| Country | Madagascar |
| Coordinate location | 23°34′0″S 43°45′0″E, 23°34′0″S 43°45′0″E, 23°55′16″S 46°8′20″E, 23°34′0″S 43°45′30″E |
Onilahy be a river insyd Atsimo-Andrefana den Anosy (Toliara Province), southern Madagascar. E dey flow down from de hills near Betroka to de Mozambique Channel. E dey empty at St. Augustin, den into de Bay of Saint-Augustin.
Two species of cichlids be endemic to de river basin, buh Ptychochromis onilahy be probably already extinct[1] den de remaining range of Ptychochromoides betsileanus dey cover less than 10 square kilometres (3.9 mi2).[2][3]
Geography
[edit | edit source]Sources of de Onilahy river be near Beadabo. E dey flow thru Ankilimary, to Benenitra, Ehara, Bezaha den Antanimena. E be crossed by de RN 10 near Tameantsoa. De mouth of de Onilahy river dey situate insyd de Indian Ocean at Saint Augustin, Madagascar, 35 km south of Toliara (Tuléar).
Ein main affluentes from ein south be Sakamena river, Evasy River, Ianapera River, Isoanala river den de Ihazofotsy River. From de north dese be Sakondry, Taheza, Sakamare den de Imatoto rivers.
References
[edit | edit source]- ↑ Stiassny, M., and Sparks, J. S. (2006).
- ↑ IUCN (2016-06-28). Ptychochromoides betsileanus: Ravelomanana, T. & Sparks, J.S.: The IUCN Red List of Threatened Species 2020: e.T18832A177066640 (Report) (in English). International Union for Conservation of Nature. doi:10.2305/IUCN.UK.2020-3.RLTS.T18832A177066640.en.
- ↑ Walaszczyk, I.; Marcinowski, R.; Praszkier, T.; Dembicz, K.; Bieńkowska, M. (August 2004). "Biogeographical and stratigraphical significance of the latest Turonian and Early Coniacian inoceramid/ammonite succession of the Manasoa section on the Onilahy River, south-west Madagascar". Cretaceous Research. 25 (4): 543–576. doi:10.1016/j.cretres.2004.05.001. ISSN 0195-6671.
External links
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