ORDER ANSERES. 6 1 



169.1. Chen caerulescens (Linn.). 



Blue Goose. 



Anas ccerulescens Linn. S. N. ed. lo, I. 1758, 124. 

 Chen ccerulescens Gundl. in Poey's Repert. Fis.-nat. Isla Cuba, 

 I, 1865-66, 387. 



[B 564, C 479, R 590, C 694.] 



Geog. Dist. — Interior of North America, breeding on eastern 

 shores of Hudson Bay and migrating south, in winter, through 

 Mississippi Valley to Gulf coast ; occasional on Atlantic coast. 



170. Chen rossii (Cassin). 



Ross's Snow Goose. 



Anser rossii "Baird MSS.," Cass. Pr. Ac. Nat. Sci. Phila. 1861, 



73. 

 Chen rossii Ridgw. Pr. U. S. Nat. Mus. III. Aug. 24, 1880, 203. 



[B— C481, R592, C697.] 



Geog. Dist. — Arctic America in summer. Pacific coast to southern 

 California and east to Montana in winter. 



Genus ANSER Brisson. 

 ^«j-^r Brisson, Orn. VI. 1760, 261. Type, Anas anser Linn. 

 [171.] Anser albifrons (Gmel.). 



White-fronted Goose. 



Anas albifrons Gmel. S. N. I. 1788, 509. 



Anser albifro7is Bechst. Gem. Naturg. Deutschl. IV. 1809, 898. 



[B-,C— , R593, C692.J 



Geog. Dist. — Northern parts of eastern hemisphere. Eastern 

 Greenland ? 



171 a. Anser albifrons gambeli (Hartl.). 



American White-fronted Goose. 



Anser gambeli Hartlaub, Rev. Mag. Zool. 1852, 7. 

 Anser albifrons var. gambeli Coues, Key, 1872, 282. 



