Trochus (Euchelus) Philippi, 1847 Euchelus is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae (formerly in the family Trochidae).

[1] The umbilicate or imperforate shell has a globose-turbinate shape.

The whorls are rounded and with spirally granose revolving ribs.

The outer lip is thickened, and crenulate within.

The columella shows a central tooth or a notch at the base.