VIII 
EXPLANATION OF PLATES. 
Page. 
Plate 93. Fig. 1. Chroicocephalus cwullatus, Brtjch. — ^Hooded Gull. — 4320. Calcasieu, La. (The hood should 
extend further on the throat.) 851 
Fig. 2. Chroicocephalus frayiklinii, Brucii. — Franklia's Rosy Gull. — 4897. Kaiicsville, Mo. April 28, 
185G 851 
94. Sterna elegans, Gambel. — Elegant Tern.-— From specimen shot in the liarbor of San Francisco by 
Mr. J. Hepburn 860 
95. Sterna pikei, Lawr. — Slender-billed Tern. — From original in collection of Geo. N. Lawrence 8G3 
96. Fig. 1. Uria columha, Cassin.— Western Guillemot.— North Pacific. Capt. Rodgers 912 
Fig. 2. Uria grylle, Latham. — Black Guillemot. — Sea of Ochotsk. Capt. Kodgers' collection in Smithsonian 
Museum 911 
97. Z7m cario, Brandt. — Crow Guillemot. — From Kamschatka. Phila. Academy 913 
98. Graculus mexicanus, Bonap. — Mexican Cormorant.— Phila. Academy 879 
99. Fig.]. Podiceps dominicus, Latham. — White-winged Grebe — From specimen in Museum of Phila. Academy 
from Xalapa, Mex. 897 
Fig. 2. Thalassidroma melania, BoyAV. — Black Stormy Petrel. — 13725. San Francisco 830 
100. Podiceps Olarkii, Lawrence. — Clarke's Grebe. 9930. Female. Chihuahua 895 
