Esomus longimanus (Lunel, 1881)
Mekong flying barb
Esomus longimanus
photo by Grimm, M.

Family:  Danionidae (Danios), subfamily: Esominae
Max. size:  8 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Mekong from the Khorat Plateau, Thailand to the Great Lake, Cambodia (Ref. 12693); Malay Peninsula, coastal streams of South-east Thailand and Cambodia, and Chao Phraya basin in Thailand (Ref. 12041).
Diagnosis:  Dorsal soft rays (total): 8-8; Anal soft rays: 8-8. Two pairs of barbels (Ref. 43281); rostral barbel extends well beyond eye; first pectoral ray sometimes reaching anal fin; narrow dark line from head to caudal-fin base (Re. 12693).
Biology:  Usually found in ditches, canals and ponds often in areas with extensive growth of submerged aquatic plants (Ref. 12693). Encountered mainly in stagnant water bodies including sluggish flowing canals as well as in medium to large rivers of the middle Mekong (Ref. 12975). Feeds on zooplankton and insects. Sometimes sold fresh and used to make prahoc (Ref. 12693).
IUCN Red List Status: Data deficient (DD); Date assessed: 29 April 2010 Ref. (130435)
Threat to humans:  harmless


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