Beaded Periwinkle

(Linnaeus, 1758)

Cenchritis muricatus

Class:

Order:

Family:

Gastropoda

Littorinimorpha

Littorinidae

Littorinidae

Shell Information

Length (mm): 15-25

Dextral

Chirality:

The Beaded Periwinkle has about 7 shell whorls leading to a relatively sharp apex. The shell is sculpted by 4-5 spiral rows of small knobs. It is white to yellow-gray in color.

Description:

Ecological Information

Distribution:

Depth (m):

Florida to the Caribbean Sea

-9 to 0 meters

Diet:

Herbivore

Habitat:

Marine and Terrestrial; Rocky intertidal zone

Misc. Facts

Also sometimes called the knobby periwinkle.

Citations

MolluscaBase eds. (2021). MolluscaBase. Cenchritis muricatus (Linnaeus, 1758). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=419557 on 2021-06-23

Morris, P. A. (1987). A field guide to shells: Atlantic and Gulf coasts and the West Indies (3rd ed.). Houghton Mifflin.

Rosenberg, G., F. Moretzsohn, and E. F. Garc�a. 29. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579�699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico�Origins, Waters, and Biota. Biodiversity. Texas A&M University Press, College Station, Texas.