Has three fleshy tentacles on the tip of its lower jaw, a single fleshy pointed projection at the tip of its snout, and tubular anterior nostrils ending in gaudy, fanlike expansions.

Description: Characterized by bright blue color with yellow dorsal fin and anterior part of head in male; yellow with black anal fin in female; black with yellow anal fin and white fin margins in juvenile and subadults; capable of male to female sex change; laterally compressed and extremely long body; depth at gill opening 65-75 in TL; origin of dorsal fin well foreward to gill opening, closer to corner of mouth; tail is longer than head and trunk; preanal length 3.0-3.3 in TL; large tubular anterior nostrils with greatly enlarged distal margin, forming fan-shaped appendage; front of upper jaw with forward-projecting slender barbel; three barbels at front of lower jaw; single row of small and slender jaw teeth that is slanted backwards (Ref. 90102).