Tenaturris terpna
Tenaturris terpna is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Description
The length of the shell attains 9.1 mm, its diameter 3.6 mm.The medium-sized shell is moderately stout. The protoconch is as described under the
genus. The anal notch is relatively shallow.
The sculpture consists of axial ribs, weakly overridden by fine spiral threads. The axials of the first three whorls are relatively broad and far apart, those on remaining whorls narrow and more closely spaced. Interspaces bear microscopic frosted spirals.