Barbel n. : A slender tactile organ on the lips of certain fished.

Barbel n. : A large fresh-water fish ( Barbus vulgaris) found in many European rivers. Its upper jaw is furnished with four barbels.

Barbel n. : Barbs or paps under the tongued of horses and cattle. See 1st Barb, 3.

Example:
How long should I wait to change my tongue Barbel?

Taxonomy
barbel, fish, Barbus, genus, Europe, free encyclopedia, Barbus meridionalis, subspecies, fish species, roe, barbus sclateri, Barbus tauricus, Barbus bynni, the Mediterranean, Amur, freshwater fish, Barbus brachycephalus, Central Asia.

Defination from the web:
barbel will range from 25 to 100 cm in length and weigh anywhere between 200 g and 10 kg, although weights of 1-2kg are more common. ... The Crimean barbel Barbus tauricus is found in the Salgir River in the Crimean peninsular. ...