fanoa W. H. Dall, 1927 Compsodrillia excentrica is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

(Original description) The small, white shell is strongly sculptured.

The spiral sculpture consists of three strong cords, overriding the ribs; and about a dozen smaller plain threads on the base and the siphonal canal.

The anal sulcus is very shallow, outer lip sharp, protractively arcuate and thin.

The columella is straight, somewhat gyrate but with an impervious axis; attenuated in front.