Costasiella

Costasiella is a genus of sacoglossan sea slugs, a shell-less marine gastropod mollusks in the family Costasiellidae. The most recent diagnosis of the genus Costasiella is by the Dutch malacologist (2007).

Costasiella

Costasiella is a genus of sacoglossan sea slugs, a shell-less marine gastropod mollusks in the family Costasiellidae. The most recent diagnosis of the genus Costasiella is by the Dutch malacologist (2007).