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 Edit this classification
Domain: Eukaryota
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.


References
  1. "WoRMS - World Register of Marine Species - Peasiella isseli (Issel, 1869)". www.marinespecies.org. Retrieved 14 July 2023.
  2. Issel A. (1869), Malacologia del Mar Rosso : ricerche zoologiche e paleontologiche / di Arturo Issel ; memoria letta al congresso dei Naturalisti Italiani in Vicenza nel 1868


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