82 BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 



P. 799. Scientific results of explorations by the U. S. Fish Commis- 

 sion steamer Albatross. No. XIV. Birds from the coasts 

 of western North America and adjacent islands, collected in 

 1888-89, with descriptions of new species. By Charles H. 

 Townsend. 



pp. 131-142. 



P. 800. Scientific results of explorations by the U. S. Fish Commis- 

 sion steamer Albatross. No. XV. Reptiles from Clarion and 

 Socorro Islands and the Gulf of California, with description 

 of a new species. By Charles H. Townsend. 



pp. 143-144. 



P. 801. Scientific results of explorations by the U. S. Fish Commission 

 steamer Albatross. No. XVI. Plants collected in 1889 at 

 Socorro and Clarion Islands, Pacific Ocean. By George 

 Vasey and Joseph N. Rose. 



pp. 145-149. 



P. 802. On a new genus and species of colubrine snakes from North 

 America. By Leonhard Stejneger. 



pp. 151-155, 1 fig. 



P. 803. The osteological characteristics of the family Anguillidae. By 

 Theodore Gill. 



pp. 167-160. 



P. 804. The osteological characteristics of the family Synaphobranch- 

 idse. By Theodore Gill. 



pp. 161-164. 



P. 805. The osteological characteristics of the family MursenidsB. By 

 Theodore Gill. 



pp. 165-170. 



P. 806. On the disappearance of the Dick cissel, Spiza americana, 

 from the District of Columbia. By Hugh M. Smith. 



pp. 171-172. 



P. 807. Description of a new species of bat, Atalapha semota. By 

 Harrison Allen. 



pp. 173-175. 



P. 808. On the snakes of the genus Charina. By Leonhard Stej- 

 neger. 



pp. 177-182. 



P. 809. On the North American lizards of the genus Barissia of Gray. 

 By Leonhard Stejneger. 



pp. 183-185. 



P. 810. A collection of stone implements from the District of Colum- 

 bia. By S. V. Proudfit. 



pp. 187-194, 5 pis. 



P. 811. Notes on the occurrence of a young crab-eater, Elacate canada, 

 from the Lower Hudson Valley, New York. By A. K. 

 Fisher. 



p. 195. 



