1919.] NATURAL SCIENCES OF PHILADELPHIA. 309 



lizards from the Congo region presented by the American Museum 

 of Natural History, a series of reptiles from the Death Valley and 

 other localities in the western United States, collected by Messrs. 

 Hebard and Rehn and 75 specimens of reptiles obtained in Arizona 

 by Dr. Stone. A number of fishes from Pennsylvania and New Jersey 

 were obtained by Mr. Fowler and other local collectors. 



During the past year Mr. Fowler has catalogued, determined and 

 labelled 738 specimens of fishes and has published three papers in 

 the Academy's Proceedings involving the study and identification 

 of many specimens in the collection. 



He has also received for study from the U. S. National Museum the 

 fishes obtained by the U. S. Exploring Expedition of 1839 to 1842, 

 upon which he is preparing a report and of which the Academy will 

 receive a duplicate series. 



The collections have been consulted by several visiting specialists 

 and material loaned to Alexander Ruthven and Thomas Barbour. 



MOLLUSKS. 



Dr. Henry A. Pilsbry in charge of the department of Mollusks 

 reports that specimens were received during the year from 72 donors, 

 among the more valuable gifts being 646 lots of North American 

 fresh-water shells from Bryant Walker, selected by Dr. Pilsbry, and 

 a series of Arizona shells and alcoholic specimens collected and pre- 

 sented by James H. Ferriss and A. A. Hinkley. Dr. V. Sterki sup- 

 plied paratypes of numerous species of Sphaeriidse and Mr. A. A. 

 Hinkley a series of shells from Guatemala including types of new 

 species. Mr. C. T. Simpson presented a large series of the hand- 

 some tree snails of Florida from newly explored localities in the Ever- 

 glades and elsewhere; and substantial additions to the Pennsylvania 

 and New Jersej' collections have been made by E. G. Vanatta and 

 Bayard Long. 



Studies on the family Pupillidse have been continued during the 

 year and published in volume XXV of the Manual of Conchology 

 which has been completed, the last part being now in press, Dr. C. 

 Montague Cooke having collaborated in the description of the 

 Hawaiian species. Work has also been done on a report on the 

 mollusca of New York and many specimens have been determined 

 for correspondents. 



Mr. E. G. Vanatta has continued the arrangement of the collec- 

 tions, the preparation of material for the museum, and has published 

 four short articles on new material received. Miss Ziegler has made 

 good progress in cataloguing the tertiary fossils. 



