e. 
. 800. 
otis 
. 802. 
. 808. 
. 804. 
. 805. 
. 806. 
. 807. 
. 808. 
. 809. 
econ MOP 
811. 
BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 
. 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. 
Scientific results of explorations by the U. S. Fish Commis- 
sion steamer A/batross. No. XV. Reptiles from Clarion and 
Socorro Islands and the Gulf of California, with description 
of a new species. By Charles H. Townsend. 
pp. 148-144. 
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. 
On a new genus and species of colubrine snakes from North 
America. By Leonhard Stejneger. 
pp. 151-155, 1 fig. 
The osteological characteristics of the fey Anguillide. By 
Theodore Gill. 
pp. 157-160. 
The osteological characteristics of the family Synaphobranch- 
ide. By Theodore Gill. 
pp. 161-164. 
The osteological characteristics of the family Murenide. By 
Theodore Gill. 
pp. 165-170. 
On the disappearance of the Dick cissel, Spiza americana, 
from the District of Columbia. By Hugh M. Smith. 
pp. 171-172. 
Description of a new species of bat, Atalapha semota. By 
Harrison Allen. 
pp. 173-175. 
On the snakes of the genus Charina. By Leonhard Stej- 
neger. 
pp. 177-182. 
On the North American lizards of the oe Barissia of Gray. 
By Leonhard Stejneger. 
pp. 183-185. 
A collection of stone implements from the District of Colum- 
bia. By 8S. V. Proudfit. 
pp. 187-194, 5 pls. 
Notes on the occurrence of a young crab-eater, /lacate canada, 
from the Lower Hudson Valley, New York. By A. K. 
Fisher. 
p. 195. 
