The Recently Extinct Plants and Animals Database

Pelusios castaneus seychellensis Siebenrock, 1906:38

Seychelles black terrapin, Seychelles mud turtle, Seychelles terrapin



Taxonomy & Nomenclature

Synonym/s: Pelusios seychellensis Siebenrock, 1906:38; Pelusios subniger seychellensis Siebenrock, 1906:38; Sternothaerus nigricans seychellensis Siebenrock, 1906:38


This subpecies is now known to be synonymous with Pelusios (castaneus) castaneus (Stuckas et al. 2013). 


Conservation Status

Last record: 1895

IUCN RedList status: Extinct



Seychelles (Mahé Island?)


Biology & Ecology




Three specimens are known, all collected in 1895 (Gerlach, 2003).






Original scientific description:

Siebenrock, F. (1906). Schildkroten von Ostafrika und Madagaskar. In: Voeltzkow, A. Reise in Ost-Afrika in den Jahren 1903-1905 mit Mitteln der Hermann und Elise geb. Heckmann-Wentzel-Stiftung. Wissenschaftliche Ergebnisse. Systematischen Arbeiten. Stuttgart 2: 1-40.


Other references:

Bour, Roger. (1983). Trois populations endémiques du genre Pelusios (Reptilia, Chelonii, Pelomedusidae) aux îles Seychelles; relations avec les espèces africaines et malgaches. Bulletin du Muséum National d’Histoire Naturelle, Paris (4)5A: 343-382.

Bour, Roger. (2013). Actualités chez les tortues des Seychelles. Chéloniens 29: 27-41.

Bour, R. and Gerlach J. (2008). Pelusios seychellensis (Siebenrock 1906)-Seychelles mud turtle. In: Rhodin, A. G. J., Pritchard, P. C. H, van Dijk, P. P., Saumure, R. A., Buhlmann, K. A., and Iverson, J. B. (Eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs No. 5, pp. 018.1-018.3.

Gerlach, Justin. (2002). Seychelles Terrapin Action Plan. Phelsuma 10B: 1-16.

Gerlach, Justin. (2003). Pelusios seychellensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 28 July 2012.

Gerlach, Justin. (2012). Red Listing reveals the true state of biodiversity: a comprehensive assessment of Seychelles biodiversity. Phelsuma 20: 9-22.

Gerlach, Justin and Canning, K. L. (1996). The rediscovery of Pelusios seychellensis. Phelsuma 4: 68-69.

Gerlach, Justin and Canning, L. (2001). Range contractions in the Critically Endangered Seychelles terrapins (Pelusios spp.). Oryx 35(4): 313-321.

Stuckas, H., Gemel, R., Fritz, U. (2013). One Extinct Turtle Species Less: Pelusios seychellensis Is Not Extinct, It Never Existed. PLoS ONE 8(4): e57116.

Turtle Extinctions Working Group et al. (2015). Turtles and Tortoises of the World During the Rise and Global Spread of Humanity: First Checklist and Review of Extinct Pleistocene and Holocene Chelonians. Chelonian Research Monographs No. 5: 1-66.


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