Cryptopotamon anacoluthon


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Cryptopotamon anacoluthon
Species Authority: (Kemp, 1918)
Taxonomic Notes: Subfamily Potamiscinae.

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Esser, L. and Cumberlidge, N.
Reviewer(s): Ng, P. and McIvor, A.
Listed as Vulnerable because it may be under long-term threat from rapid anthropogenic changes affecting its habitat and is only known from three locations. This species only lives in clean streams, a habitat that may be threatened by future human induced degradation due to human population increases and industrial and agrarian development. This species is not found in a protected area and was last collected in 1991.

Geographic Range [top]

Range Description: Hong Kong: stream at Wu Kwai Sha, Kwun Yum Shan stream and Tai Po Kau Forest Reserve in New Territories; The Peak, Hong Kong (Kemp 1918).
Hong Kong
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: This species appears to be most numerous in shaded shallow streams with clear, fast-flowing water, rocky substratum, and accumulations of leaf-litter, which serve as shelter and food. It is not found in polluted waters. For a potamid, this species is timid and specimens can be kept together without much damage to one another.
Systems: Freshwater

Threats [top]

Major Threat(s): Habitat loss and pollution.

Conservation Actions [top]

Conservation Actions: Habitat loss and pollution. No conservation measures are known to be in place for this species and it is not found in a protected area.

Citation: Esser, L. and Cumberlidge, N. 2008. Cryptopotamon anacoluthon. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 01 April 2015.
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