Drilliola crispata

Microdrillia crispata is an extinct species of sea snail, a marine gastropod mollusk in the family Borsoniidae.

[1] There is one subspecies: Microdrillia crispata vatreni Della Bella & Tabanelli, 1986 The length of the shell attains 5 mm.

The whorls are convex, with numerous prominent revolving carinae, the interstices narrow, obliquely longitudinally striated.

The color of the shell is white, the apex tinged with fuscous.

[2] This extinct marine species has been found in Northeast Brasil.