Ptychochromis onilahy Stiassny & Sparks, 2006
Onilahy River cichlid (proposed)
Taxonomy & Nomenclature
Ptychochromis sp. nov. 'Kotro'
Conservation Status
Extinct
Last record: 1962
IUCN RedList status: Extinct
Distribution
Onilahy River, Madagascar (south-western)
Biology & Ecology
Hypodigm
Holotype: AMNH 237131 (adult, sex unspecified)
Only five specimens, all from the type series, exist in museums.
Media
References
Original scientific description:
Stiassny, Melanie L. J. and Sparks, John 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, Number 3535, 55 pp., 26 figures, 2 plates, 11 tables.
Other references:
Kiener, A. 1963. Poissons, pêche et pisciculture à Madagascar. Publication no. 24 du Centre Technique Forestier Tropical, Nogent-sur-Marne, France.
Loiselle, P. & participants of the CBSG/ANGAP CAMP "Faune de Madagascar" workshop, Mantasoa, Madagascar 2001. (2004). Ptychochromis sp. nov. 'Kotro'. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. (http://www.iucnredlist.org). Downloaded on 31 May 2013.
Máiz-Tomé, L., Sayer, C. and Darwall, W. (eds.). (2018). The status and distribution of freshwater biodiversity in Madagascar and the Indian Ocean islands hotspot. Gland, Switzerland: IUCN. viii + 128 pp.
Sparks, J.S. 2016. Ptychochromis onilahy. The IUCN Red List of Threatened Species 2016: e.T44504A58308545. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T44504A58308545.en. Downloaded on 03 March 2018.
Vardakas, Leonidas, Perdikaris, Costas, Freyhof, Jörg, Zimmerman, Brian, Ford, Matthew, Vlachopoulos, Konstantinos, Koutsikos, Nicholas, Karaouzas, Ioannis, Chamoglou, Maria and Kalogianni, Eleni. (2025). Global Patterns and Drivers of Freshwater Fish Extinctions: Can We Learn From Our Losses? Global Change Biology 31(5): e70244. https://doi.org/10.1111/gcb.70244 [Table S1]