Length (mm): 75-100
The Ten-ridged Whelk has a relatively fat shell shape. It is named for the ten pronounced spiral ribs found on the body whorl. Typically three of these ribs will continue on the whorls of the spire. These shells are usually yellowish gray to white with a darker red color on the ridges.
Nova Scotia to Massachusets
4 to 1207 meters
Marine; Moderately shallow water
It is the official state shell of Massachusetts.
MolluscaBase eds. (2021). MolluscaBase. Neptunea decemcostata (Say, 1826). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=491164 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.