Description of a new pelecypod of the genus Lima from deep water off central California / by Leo George Hertlein. Shells from the bird guano of southeast Farallon Island, California, with description of a new species of Liotia / by Allyn G. Smith. A rare species of chiton from Pioneer Seamount off central California / by A.G. Smith and G.D. Hanna. Some decapod Crustacea dredged off the coast of central California / by Delbert G. Goodwin.