REPORT OF NATIONAL MUSEUM, 1911. 39 



In connection with explorations about the Coronado group of 

 islands belonging to Lower California, Dr. Fred. Baker and Miss 

 J. M. Cooke, of San Diego, California, collected a quantity of shells, 

 chiefly minute forms, which were sent to the Museum for determina- 

 tion. A selection from this material donated to the Museum con- 

 tains the types of a number of new species and of one new genus of 

 bivalves, Bernardino,. Mr. Charles K. Orcutt, also of San Diego, 

 presented many shells obtained by him in various parts of Mexico, 

 including types of several new species and a number of desiderata. 

 Through Dr. John Macoun the undetermined shells from last 

 season's collecting by the Geological Survey of Canada were sent 

 to Washington to be named and divided between the Survey and the 

 Museum. Mr. Arthur Haycock, of Bailey Bay, the Bermudas, con- 

 tributed a series of shells secured during explorations about those 

 islands, in return for assistance in working up his material. From 

 Dr. T. W. Stanton, of the United States Geological Survey, there 

 was received an interesting lot of shore shells from northern Alaska, 

 and from Dr. R. H. Tremper, of Ontario, California, a beautifully 

 prepared series of desiderata from his fine collection of west coast 

 shells. A notable specimen of Haliotis cracherodii, in that it had 

 never developed any branchial orifices though otherwise apparently 

 normal, was obtained by purchase at Venice, California. 



The progress made in labeling, recording, and administering on the 

 collection was much greater than in any previous year in the history 

 of the division. For addition to the reserve series 9,019 separate 

 lots comprising some 27,000 specimens were labeled and registered, 

 and about 25,000 labels were prepared for the collection recently 

 made at the Philippine Islands by the steamer Albatross. The in- 

 corporation of this new material in the systematically arranged col- 

 lection was only partly accomplished during the year. 



The researches with which the curator of the division, Dr. Wil- 

 liam H. Dall, was chiefly occupied related to his monograph of the 

 marine mollusks of northwestern America, already mentioned. This, 

 in connection with work on the Pleistocene and Tertiary faunas for 

 the Geological Survey, is making slow but constant progress. A 

 number of papers on minor investigations by Doctor Dall were pub- 

 lished. During such time as could be spared from the general work, 

 the assistant curator, Dr. Paul Bartsch, continued his studies on the 

 Turton collection of marine mollusks from Africa. The collections 

 of the division were utilized by a number of persons. Dr. T. Way- 

 land Vaughan, of the Geological Survey, continued his investigations 

 on the fauna of the coastal plain of the southeastern United States, 

 and Mr. G. Dallas Hanna, of the same survey, his work on the land 

 and fresh-water mollusks of Kansas. Miss Julia Gardner examined 

 Tertiary fossils in connection with her work for the Geological Sur- 



