Brookula decussata

Brookula decussata is a species of sea snail, a marine gastropod mollusk unassigned in the superfamily Seguenzioidea.

This species is considered sometimes a synonym of Brookula pfefferi Powell, A.W.B., 1951, but B. decussata is somewhat smaller and a has a more definite sculpture with fewer spirals and more axials.

Description
The maximum recorded size of the shell is 2.5 mm.

Distribution
This marine species occurs off the South Orkney Islands and off The Antarctic Peninsula.