Labeo sorex Nichols & Griscom, 1917

Family:  Cyprinidae (Minnows or carps), subfamily: Labeoninae
Max. size:  35.2 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Africa: lower and middle Congo River (Ref. 26192) and Wagenia Falls (Ref. 106245) in Democratic Republic of the Congo; mainly found in rapids (Ref. 26192).
Diagnosis:  Dorsal soft rays (total): 9-10; Vertebrae: 34-36. Lips with transverse plicae on inner surface; snout very prominent, ending in a big fleshy upwards turned transverse appendix; eyes extremely small, generally in dorsal position. Can be distinguished from L. nasus by its smaller eyes and higher vertebral and scale counts (Ref. 12456).
Biology:  Known only from the rapids of the Congo River where it appears most adapted. Among its adaptations are the reduce diameter of the eyes; the dorso-laterally flattened shape of the head, the very large lips which are apparently adapted for suction; the latero-ventral arrangement and form of the paired fins which is largely extended and compressed ; and the blue or bluish coloration (Ref. 26192).
IUCN Red List Status: Data deficient (DD); Date assessed: 16 February 2009 Ref. (130435)
Threat to humans:  harmless


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