Seanet High Intertidal

High Intertidal Mid Intertidal Low Intertidal    Rocky Shore Taxonomic Subtidal Taxonomic    Rocky Shore by Pictures Subtidal by Pictures

Ligia occidentalis  Dana, 1853
Phylum Arthropoda, Subph. Crustacea, Class Malacostraca, Subcl. Eumalacostraca, Superorder Peracarida, Order Isopoda, Family Ligiidae

High-shore isopod; dorsoventally-compressed body to 25 mm; elongate uropods (specimen in photo missing 1 uropod).

Common, under stones & in crevices; high intertidal zone well above the highest tides; spends most of time out of the water, returning only to wet its gills; extremely quick and agile.

Geo Range: Sonoma County to Central America
Similar species:  many other spp. of isopods occur on rocky shores.