PROCEEDINGS yjj 



Proc. 

 No. 



797. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XII. — A preliminary report on the fishes collected by the steamer 

 Albatross on the Pacific coast of North America during the year 1889, with 

 descriptions of twelve new genera and ninety-two new species. By Charles 

 H. Gilbert. Pp. 49-126. July 1, 1890. 



798. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XIII. — Catalogue of skeletons of birds collected at the Abrolhos 

 Islands, Brazil, the Straits of Magellan, and the Galapagos Islands, in 

 1887-'88. By Frederic A. Lucas. Pp. 127-130. July 1, 1890. 



799. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XIV. — Birds from the coasts of western North America and 

 adjacent islands, collected in 1888-'89, with descriptions of new species. 

 By Chas. H. Townsend. Pp. 131-142. Sept. 9, 1890. 



800. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XV. — Reptiles from Clarion and Socorro Islands and the Gulf of 

 California, with description of a new species. By Chas. H. Townsend. Pp. 

 143-144. Sept. 9, 1890. 



801. Scientific results of explorations by the U. S. Fish Commission steamer Alba- 



tross. No. XVI. — Plants collected in 1889 at Socorro and Clarion Islands, 

 Pacific Ocean. By Geo. Vasey and J. N. Rose. Pp. 145-149. Sept. 9, 1890. 



On a new genus and species of colubrine snakes from North America. By 

 Leonhard Stejneger. Pp. 151-155, 1 fig. Sept. 9, 1890. 



The osteological characteristics of the family Anguillidae. By Theodore Gill. 

 Pp. 157-160. Sept. 9, 1S90. 



The osteological characteristics of the family Synaphobranchidae. By Theo- 

 dore Gill. Pp. 161-164. Sept. 9, 1890. 



The osteological characteristics of the family Muraenidae. By Theodore Gill. 

 Pp. 165-170. Sept. 9, 1890. 



On the disappearance of the dick cissel (Spiza americana) from the District 

 of Columbia. By Hugh M. Smith. Pp. 171-172. Sept. 9, 1890. 



Description of a new species of bat, Atalapha semota. By Harrison Allen. 

 Pp. 173-175. Sept. 9, 1890. 



On the snakes of the genus Charina. By Leonhard Stejneger. Pp. 177-182. 

 Sept. 9, 1890. 



On the North American lizards of the genus Barlssia of Gray. By Leonhard 

 Stejneger. Pp. 183-185. Sept. 9, 1890. 



A collection of stone implements from the District of Columbia. By S. V. 

 Proudfit. Pp. 187-194, 5 pis. Sept. 9, 1890. 



Notes on the occurrence of a young crab-eater (Elacate Canada), from the 

 lower Hudson Valley, New York. By A. K. Fisher. P. 195. Sept. 9, 1890. 



Observations on the life history of the bottlenose porpoise. By Frederick W. 

 True. Pp. 197-203, 1 fig. Sept. 9, 1890. 



Scientific results of explorations by the U. S. Fish Commission steamer Alba- 

 tross. No. XVII. — Descriptions of new West American land, fresh-water, 

 and marine shells, with notes and comments. By Robert E. C. Stearns. Pp. 

 205-225, 3 pis. Sept. 16, 1890. 



Description of two new species of mammals from Mt. Kilima-Njaro, East 

 Africa. By Frederick W. True. Pp. 227-229. Sept. 16, 1890. 



Osteological characteristics of the family Muraenesocidae. By Theodore Gill. 

 Pp. 231-234. Sept. 16, 1890. 



On the family Rancipitidae. By Theodore Gill. Pp. 235-238, 1 pi. Oct. 

 14, 1890. 



The osteological characteristics of the family Simenchelyidae. By Theodore 

 Gill. Pp. 239-242. Oct. 14, 1890. 



The characteristics of the Dactylopteroidea. By Theodore Gill. Pp. 243-248, 1 

 pi. Oct. 14, 1890. 



Notes on the birds observed during the cruise of the United States Fish Com- 

 mission schooner Grampus in the summer of 1887. By William Palmer. 

 Pp. 249-265. Oct. 14, 1890. 



