Definition: A taxon is Least Concern when it has been evaluated against the criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Widespread and abundant taxa are included in this category.
Africa: upper Congo River basin in Lufira River (Ref. 2970), Luvua River (Ref. 78218), Lukuga River (Ref. 93587), and rivers in the western region of Lake Tanganyika (Ref. 36901) in Democratic Republic of the Congo (Ref. 78218, 87986)
Comment: "Small" is ambiguous. For details on "Small rivers" (e.g. the Salween river) see http://worldwildlife.org/biomes/small-river-ecosystems. This class will be replaced with a less ambiguous class.
