Abstract. - The mantis shrimp Hemisquilla ensigera californiensis (Crustacea: Stomatopoda) ranges from south of Point Conception in southern California to the Golfo de Chiriqui, Panama. Hemisquilla populations occur off four of the eight California Is . . .

A total of 349 epibenthic taxa of macroinvertebrates were recorded from 7 mainland and 15 island rocky intertidal sites in the Southern California Bight. The occurrence of these taxa among the 22 sites is presented as a checklist organized by phyla an . . .