Pleioptygma carolinense

Pleioptygma carolinense is an extinct species of sea snail, a marine gastropod mollusk in the family Pleioptygmatidae.

Pleioptygma carolinensis is the type species of the genus Pleioptygma.

Distribution
This species is found in the Pliocene deposits of North Carolina. The type locality is Duplin County, North Carolina.

Description
The type description of Pleioptygma carolinensis originally described as Voluta carolinensis by Timothy Abbott Conrad (1840) reads as follows:

Voluta Carolinensis. — Shell subfusiform; whorls deeply channeled below the suture; superior margin of the channel carinated; spire elevated, with prominent, rather distant acute spiral lines on the three or four superior whorls; large whorl with obscure, distant spiral lines, except towards the base, which is sulcated, and strongly striated. Length 3 inches.