KEPORT OF ASSISTANT SECRETARY. . 93 



of fishes of the Nile made by the Senff Expedition of 1899, and published 

 notes on collections from North Carolina and the Barbados. 



Dr. William H. Dall completed reviews of the nomenclature of the 

 Pupacea and of the history and classification of the Tritons and Frog- 

 shells, and also a summary of the recent and fossil land-shell fauna 

 of the Bahamas. He also began a general review of the land and fresh- 

 water shells of Alaska and adjoining regions in Asia and North 

 America. His publications on recent mollusks for the year consisted 

 of descriptions of 13 new species from California, a new genus of 

 Trochidse from Hawaii, three notes on nomenclature, a note on the 

 family Septidse, and one on the relations of Gundlachia and Ancylus. 

 He also published conjointly with Mr. Paul Bartsch the chapter on 

 the Pyramidellidse in Mr. Ralph Arnold's Paleontolog}- of San Pedro, 

 California, a synopsis of the genera of the same family, a revision of 

 ArnpuEaria, and a description of a new California species of Peri- 

 ploma. 



Mr. Bartsch continued work on the Pyramidellidse, as noted in last 

 year's report, and published descriptions of new species of Scissurella 

 and So, mi; Ha. a note on Limax, and also an account of the herons 

 living in the District of Columbia. 



The bibliography of the staff of the Division of Insects (including 

 the honorary officers) for the year comprises 111 titles. It is obvi- 

 ously impossible to mention so large a number in detail in this place, 

 but a full list will be found under "Bibliography' 1 . Dr. L. O. 

 Howard published 16 papers, including one in the Yearbook of the 

 Department of Agriculture for 1903 on silk culture. Doctor Ash- 

 niead's papers number 20, the most extensive being a classification of 

 the Chalcid flies, based partly on the collection of the National Museum 

 and published by the Carnegie Museum of Pittsburg. It consists of 

 326 pages and !» plates. Dr. H. (J. Dyar's entomological publications 

 for the year number 31, among them being a paper of 160 pages on 

 the Lepidoptera of the Kootenai District of British Columbia. Mr. 

 D. W. Coquillett published 15 papers, including descriptions of new 

 genera and species in Mrs. C. F. Baker's reports on the Diptera of 

 California. Mr. Nathan Banks's publications on spiders were of equal 

 number; among them one on Pliasmidae of 23 pages, the spiders of 

 Florida, containing a list of 27'.» species, of which 13 were new (28 pp.). 



Mr. Caudell published 11 papers, among them one on the Wal king- 

 sticks (Phasmidse) of the United States (23 pp.), containing descrip- 

 tions of a new subfamily, three new genera, and four new species. 

 Mr. R. P. Currie published an account of an insect-collecting trip in 

 British Columbia (11 pp.) and two other papers. 



Dr. J. E. Benedict's revision of the crustaceans of the genus 

 Lepidopa, mentioned in last year's report, was published in the Pro- 

 ceedings of the Museum, and he has continued his studies of the 



