Leucotina was established at first as a genus of the family Acteonidae, but later it had been allocated in the family Pyramidellidae. But, Ponder (1987) speculated that this genus may belong to the family Amathinidae based on shell, though soft part characters were not comfirmed. The present investigation on not only shell but also soft part characters of two Leucotina species including the type species of this genus concluded that this genus is decidedly a member of the Amathinidae.