Polystira albida

Polystira albida, common name white giant turris, is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.

Distribution
P. albida can be found in Western Atlantic waters, ranging from the eastern coast of Florida south to Brazil.

Description
Shells of Polystira albida can reach a size of 44 - 127 mm. These large shells are slender, fusiform, with a narrow and long aperture and a white external surface.

Habitat
These tropical benthic gastropods live at depths of 15 to 229 m.

Life cycle
Embryos develop into free-swimming planktonic marine larvae (trochophore) and later into juvenile veligers.