Dictionary of Ichthyology  

barbel = a slender fleshy process located close to the mouth, usually possessing tactile and/or gustatory sense, and useful in identification, e.g. in Acipenseridae, Gadidae, Ictaluridae, Cyprinidae, Clariidae

Heterobranchus bidorsalis, a clariid, from Boulenger's "Fishes of the Nile". Photograph by Brian W. Coad.....more

Canadian Museum of Nature
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