Crassispira amathea Dall, 1919 Pilsbryspira amathea, common name the mottled turrid, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

(Original description) The solid shell is marbled with brown and white, the brown chiefly as a broad dark peripheral band with a narrower band just behind the siphonal canal.

The suture is obscure, appressed, with a strong whitish ridge in front of it behind a rather wide constricted fasciole.

The axial sculpture consists of (on the body whorl about a dozen short ribs extending from the fasciole to the siphonal canal and most prominent at the shoulder, with three nodules on the basal part of each rib.

The anal sulcus is distinct, shallow, with a large subsutural callus.