Atys bicolor is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.
Distribution This marine species occurs off Madagascar.
References
Bozzetti L. (2009) Atys bicolor (Gastropoda: Opisthobranchia: Haminoeidae) nuova specie dal Madagascar meridionale. Malacologia Mostra Mondiale 63: 17.