Potamonautes idjiwiensis

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	ARTHROPODA	CRUSTACEA	DECAPODA	POTAMONAUTIDAE

Scientific Name:	Potamonautes idjiwiensis
Species Authority:	(Chace, 1942)
Taxonomic Notes:	Bott (1955) treated this species as a junior synonym of Potamon (Geothelphsua) granviki Colosi, 1924. It is recognised here as Potamonautes idjiwiensis.

Assessment Information [top]

Red List Category & Criteria:	Endangered   B1ab(i,iii)+2ab(i,iii)   ver 3.1
Year Published:	2008
Assessor/s:	Cumberlidge, N.
Reviewer/s:	Crandall, K. and Daniels, S. and McIvor, A.
Justification: Listed as Endangered because its extent of occurrence (and AOO) is very restricted (less than 500 km²) because it is endemic to the streams and freshwater habitats on Idjiwi island in Lake Kivu, and all individuals are in just two localities. Population size is estimated at less than 2,500 mature individuals over the entire range. Continuing decline in extent of occurrence is inferred from the lack of recent collections anywhere in its range since 1942. P. idjiwiensis has been known to scientists for more than 60 years and yet still has only a poor representation in museum collections (only a handful of specimens are known). There are potential threats that may result in a decline in the extent and quality of its habitat and this species is not found in a protected area.
History:	2004 – Endangered

Geographic Range [top]

Range Description:	DR Congo. Endemic to Idjiwi Island in Lake Kivu. Its extent of occurrence is very restricted (less than 500 km²) because it is endemic to the streams and freshwater habitats on Idjiwi island in Lake Kivu, and all individuals are in just two localities.
Countries:	Native: Congo, The Democratic Republic of the
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no information on population size, abundance, or trends.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Unknown.
Systems:	Freshwater

Threats [top]

Major Threat(s):

Habitat loss and pollution.

Conservation Actions [top]

Conservation Actions:

No conservation measures are known to be in place for this species and it is not found in a protected area.

Bibliography [top]

Chace, F.A. 1942. III. Decapod Crustacea. In: Scientific results of the fourth expedition to forested areas in eastern Africa. Bulletin of the Museum of Comparative Zoology 91(3): 185–233.