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Nilssonia nigricans

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA REPTILIA TESTUDINES TRIONYCHIDAE

Scientific Name: Nilssonia nigricans
Species Authority: (Anderson, 1875)
Common Name/s:
English – Black Soft-shell Turtle, Black Softshell Turtle
Synonym/s:
Aspideretes nigricans (Anderson, 1875)
Trionyx nigricans Anderson, 1875

Assessment Information [top]

Red List Category & Criteria: Extinct in the Wild ver 3.1
Year Published: 2002
Annotations:
Needs updating
Assessor/s: Asmat, G.S.M
Reviewer/s: Rhodin, A. & Behler, J. (Tortoise & Freshwater Turtle Red List Authority)
Contributor/s:
Justification:
A. nigricans is known to occur only in a single artificial temple pond near Chittagong, Bangladesh. No specific observation of this species has been made outside of this pond.
History:
2000 – Critically Endangered
1996 – Critically Endangered (Baillie and Groombridge 1996)
1996 – Critically Endangered
1994 – Rare (Groombridge 1994)
1990 – Rare (IUCN 1990)
1988 – Rare (IUCN Conservation Monitoring Centre 1988)
1986 – Rare (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: This species is only known to exist in an artificial pond (Baizid Bostami shrine) near Chittagong, Bangladesh. In 1912, its distribution was given as in between the Brahmaputra river system and the Arakan streams, but this may have been an incorrect assumption based on the distributions of A. gangenticus, A. leithi, and A. hurum (Asmat, pers. comm).
Countries:
Regionally extinct:
Bangladesh
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: Semi-aquatic
Systems: Terrestrial; Freshwater

Conservation Actions [top]

Conservation Actions: It is listed on CITES Appendix I.
Citation: Asmat, G.S.M 2002. Nilssonia nigricans. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 26 May 2013.
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