Asthelys is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.

[2] The conical shell lacks axial riblets and a peripheral carina but has a punctate microsculpture.

The midwhorl angulation is initially absent, but present on later whorls.

Radula: the rachidian tooth is broader than high and has lateral wings prominent.

[3] Species within the genus Asthelys include: