
Ligia oceanica - antenna detail
Detail showing the composition of the antenna of a Common Sea Slater (Ligia oceanica). This type of antenna with many short, clearly separated segments is quite unusual for Woodlice and (together with the large compound eyes) sets the family and genus clearly apart from the others.

Ligia oceanica, the sea slater, common sea slater, or sea roach, is a littoral zone woodlouse, living on rocky seashores of the European North Sea and Atlantic coastlines, and is also commonly seen in Taiwan.
L. oceanica individuals live for 21⁄2–3 years and usually breed only once.
Similar species: Brood Pouch Crustaceans