barbel

…one or more pairs of barbels (slender, fleshy protuberances) near the mouth and often have large, shining scales. The species vary widely in size; certain barbs are only about 2.5–5 cm (1–2 inches) long, while the mahseer (q.v.) of India may be 2 m (6.5 feet) long. Several species are…

…two fleshy extensions called “barbels” near the nasal opening that are thought to assist in prey detection and location.

Diverse morphological differences in the mouth region are related to the type of diet and to the modes of locating, capturing, and ingesting food. Barbels are short to filamentous, fleshy, fingerlike projections located at the corners of the mouth or on the snout and…

…but have a pair of barbels (slender, fleshy protuberances) on the underside of the saw and have gill slits on the sides of the head, not underneath.

…preceded by four sensitive tactile barbels that the fish drags over the bottom in search of invertebrates, small fishes, and other food.