Alionchis is a genus of air-breathing sea slugs, a shell-less marine pulmonate gastropod mollusks in the family Onchidiidae.

Alionchis have large eye tentacles and a bright white margin on the ventral surface of the mantle which makes them highly distinct from other onchidiids.

Species

Species within the genus Alionchis include:

  • Alionchis jailoloensis