(n.) A genus of small pectinibranch mollusks, having thick spiral shells, abundant between tides on nearly all rocky seacoasts. They feed on seaweeds. The common periwinkle is a well-known example. See Periwinkle.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). littorina. Retrieved September 22, 2026, from http://smartdefine.org/littorina/definitions/2028396 |
| Chicago | Webster's. 2011. "littorina" http://smartdefine.org/littorina/definitions/2028396 (accessed September 22, 2026). |
| Harvard | Webster's 2011, littorina, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/littorina/definitions/2028396>. |
| MLA | Webster's. "littorina" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/littorina/definitions/2028396> |