DESCRIPTIONS OF NEW SPECIES OF MOLLUSCA FROM THE NORTH PACIFIC OCEAN IN THE COLLECTION OF THE UNITED STATES NATIONAL MUSEUM.

Washington, D.C.: GPO Magazine. Good. Soft cover. pp293-371. Removed from PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM. VOLUME 56, 1920. PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION. VG. In plastic report covers. From the introductory remarks: "In preparing a census of the shell-bearing Marine Mollusca of the west coast of North America from the Arctic Sea to San Diego, California, with the view of compiling a classified checklist of these animals, it became necessary to review the entire fauna of the west coast of both Americas, as it proved that the range of many species is far greater than had hitherto been assumed.The National Collection is probably the richest in the world for the region indicated, including the dredgings of the United States Bureau of Fisheries steamer Albatross, as well as the contributions of a multitude of collectors during nearly half a century. The presence of the types of species described by Gould, Carpenter, and Stearns among the earlier collectors has facilitated the accurate determination of many more or less obscure forms. Among the species examined, especially those from warmer waters and from depths not reached by private collectors, there were found many which seemed to be undescribed.".