Littorina
Pronunciation : Lit"to*ri"na
Part of Speech : n.
Etymology : [NL. See Littoral.] (Zo?l.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913