|Scientific Name:||Lanceolaria bilirata|
|Species Authority:||von Martens, 1902|
|Taxonomic Notes:||It has been used as a subspecies of Lanceolaria oxyrhyncha Von Martens, 1902 of Japan (http://fada.biodiversity.be/) (Haas 1969).|
|Red List Category & Criteria:||Critically Endangered B1ab(i,ii,iii,v)+2ab(i,ii,iii,v) ver 3.1|
|Reviewer(s):||Van Damme, D., Bogan, A.E., Tran, L. & García, N.|
Lanceolaria bilirata is known at global level only from one location in Viet Nam, where it is threatened by over-harvesting for food, mining, water pollution and deforestation, which are believed to be in the cause of the observed decline in populations. Its distribution area is very small (less than 10 km2) and therefore it qualifies for the category Critically Endangered.
|Range Description:||This species is distributed only in northeast Viet Nam where it is known from Bang River in Cao Bang province.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is not common and there is very little information on its population. Surveys conducted indicate observed declines in population (V. Do pers. comm. 2011).|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This species inhabits streams and rivers in midlands and mountains.|
|Use and Trade:||Local people use freshwater mussels as a ready food source, so the mussels are often caught and sold in the markets.|
The main threats to this species are overexploitation, water pollution, mining and deforestation.
|Conservation Actions:||Surveys need to be conducted in Bang river in northeast Viet Nam to obtain information on the population, distribution, and ecological requirements of this species. Conservation actions which are needed include protection of its important habitats from direct and indirect impacts, and preventing exploitation of this species.|
|Citation:||Do, V. 2011. Lanceolaria bilirata. The IUCN Red List of Threatened Species 2011: e.T171849A6807323.Downloaded on 26 July 2016.|
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