PROCEEDINGS 89 



A contribution to a knowledge of the fresh-water crabs of America — the 



Pseudothelphusinae, By Mary J. Rathbun. Pp. 507-537, 18 figs. Nov. 21, 1898. 

 Notes on a collection of fishes from Mexico, with description of a new species 



of Platypoecilus. By Barton A. Bean. Pp. 539-542, 1 fig. Nov. 21, 1898. 

 The leeches of the U, S. National Museum. By J. Percy Moore. Pp. 543-563, 



1 pi. Nov. 21, 1898. 

 On the occurrence of Caulolepis longidens Gill, on the coast of California. By 



Charles Henry Gilbert. Pp. 565-566. Nov. 21, 1898. 

 The Brachyura collected by the U. S. Fish Commission steamer Albatross on 



the voyage from Norfolk, Virginia, to San Francisco, California, 1887-1888. 



By Mary J. Rathbun. Pp. 567-616, 4 pis. Nov. 22, 1898. 

 On the nomenclature of the whalebone whales of the tenth edition of Lin- 



naeus's Systema Naturae. By Frederick W. True. Pp. 617-635. Nov. 4, 1898. 

 A new snake from the Eocene of Alabama. By F. A. Lucas. Pp. 637-638, 2 



pis. Dec. 20, 1898. 

 Notes on the capture of rare fishes. By Barton A. Bean. Pp. 639-640. Dec. 



20, 1898. 

 The feather-tracts of North American grouse and quail. By Hubert Lyman 



Clark. Pp. 641-653, 4 figs., 3 pis. Jan. 4, 1899. 

 Note on O.xycottus acutlceps (Gilbert) from Sitka and Kadiak, Alaska. By 



Tarleton H. Bean and Barton A. Bean. Pp. 655-656. Dec. 20, 1898. 

 African Diplopoda of the genus Pachybolus. By O. F. Cook. Pp. 657-666, 3 



pis. Mar. 17, 1899. 

 The diplopod family Striariidae. By O. F. Cook. Pp. 667-676, 2 pis. Mar. 30, 



1899. 

 African Diplopoda of the family Gomphodesmidae. By O. F. Cook. Pp. 



677-739, 7 pis. Mar. 30, 1899. 

 Hydroida from Alaska and Puget Sound. By Charles Cleveland Nutting. Pp. 



741-753, 3 pis. Apr. 29, 1899. 

 The fossil bison of North America. By Frederick A. Lucas. Pp. 755-771, 2 



figs., 20 pis. May 13, 1899. 

 Petrographic report on rocks from the United States-Mexico boundary. By 



Edwin C. E. Lord. Pp. 773-782, 1 pi. May 22, 1899. 

 The land reptiles of the Hawaiian Islands. By Leonhard Stejneger. Pp. 783- 



813, 13 figs. June 5, 1899. 

 Key to the isopods of the Pacific coast of North America, with descriptions of 



twenty-two new species. By Harriet Richardson. Pp. 815-869, 34 figs. June 



5, 1899. 



1176. Description of a new species of subterranean isopod. By W. P. Hay. Pp. 



871-872, 1 pi. June 1, 1899. 



1177. Synopsis of the Recent and Tertiary Leptonacea of North America and the 



West Indies. By William H. Dall. Pp. 873-897, 2 pis. June 26, 1899. 



1178. Description of a new genus and species of discoglossoid toad from North 



America. By Leonhard Stejneger. Pp. 899-901, 4 figs., 1 pi. June 20, 1899. 



Volume 22 



Proceedings of the United States National Museum, vol. 22. Pp. i-xii (title page, 

 advertisement, table of contents, list of illustrations, and errata) ; pp. 1-1044 (Pro- 

 ceedings papers 1179-1205) ; pp. 1045-1075 (index) ; 15 figs., 18 pis. 1900. 



1179. The osteological characters of the fishes of the suborder Percesoces. By Edwin 



Chapin Starks. Pp. 1-10, 3 pis. Oct. 7, 1899. 



1180. Notes on birds from the Cameroons district. West Africa. By Harry C. Ober- 



holser. Pp. 11-19. Oct. 7, 1899. 



1181. Descriptions of two new species of tortoises from the Tertiary of the United 



States. By O. P. Hay. Pp. 21-24, 3 pis. Oct. 7, 1899, 



1182. A list of the birds collected by Mr. R. P. Currie in Liberia. By Harry C. 



Oberholser Pp. 25-37, 1 pi. Oct. 9, 1899. 



1183. A list of the biting lice (Mallophaga) taken from birds and mammals of 



North America. By Vernon L. Kellogg. Pp. 39-100. Oct. 9, 1899. 



