Milk Conch

(Gmelin, 1791)

Macrostrombus costatus

Class:

Order:

Family:

Gastropoda

Littorinimorpha

Strombidae

Strombidae

Image Voucher: 

ANSP 387258

Shell Information

Length (mm): 100-231

Dextral

Chirality:

A large heavy shell with a pronounced spire. Adults will develop an expanded body whorl with a developed lip. The body whorl of adults will also have a row of knobs. This shell is typically yellow and white with an all white underside.

Description:

Ecological Information

Distribution:

Depth (m):

North Carolina to Brazil

2 to 55 meters

Diet:

Herbivore

Habitat:

Marine; Seagrass and soft substrates

Misc. Facts

Also sometimes called the Ribbed Stromb,

Citations

MolluscaBase eds. (2021). MolluscaBase. Macrostrombus costatus (Gmelin, 1791). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=1429775 on 2021-06-23

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.

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