Peasiella isseli

Peasiella isseli is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.^[1]

Peasiella isseli
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Littorinidae
Genus:	Peasiella
Species:	P. isseli
Binomial name
Peasiella isseli (Issel, 1869)
Synonyms[1]
List Risella isseli Issel, 1869 Risella isseli var. carinata Pallary, 1926 Risella isseli var. undata Pallary, 1926 Trochus sismondae Issel, 1869 Umbonella sismondae (Issel, 1869)

Description

The height of the shell attains 4 mm, its diameter also 4 mm. The small, imperforate, greenish shell has a conoid shape. It contains minute, transverse striae. The apex is obtuse. The 41⁄2 whorls increase slowly in size. They are slightly convex and have a distinct suture. The body whorl takes up half of the total length. Its base is angulated and shows on its lower parts four concentric ribs. The oblique aperture is subcircular.^[2]

Distribution

This species occurs in the Red Sea on coral reefs.