224 The Ohio Journal of Science [Vol. XVIII, No. 6, 



to restrict Baird's Corvus camivonis to this race rather than to 

 Corvus corax clarionensis from the southwest, specimens of 

 which formed a part of the material available to Professor Baird. 

 Since the specimen best agreeing with his description, and the 

 one with which he made his chief comparisons is No. 5186, 

 U. S. Nat. Mus., an adult male, from Fort Randall, South 

 Dakota, taken, October 18, 1856, it seems proper to consider 

 this the type, and Fort Randall, South Dakota, therefore, the 

 type locality. The name, of course, thus becomes a synonym 

 of Corvus corax sinuatus Wagler. 



Corvus corax clarionensis Rothschild and Hartert. 



Corvus corax clarionensis Rothschild and Hartert, Novit. 

 Zool., IX, No. 2, July 25, 1902, p. 381 (Clarion Island, Revil- 

 lagigedo Islands, Mexico). 



Chars, subsp. — Resembling Corvus corax sinuatus, but wing, 

 tail, and other parts smaller, particularly the bill. 



Measurements. — Male:^ wing, 365-421 (average, 398) mm.; 

 tail, 202-231 (219.2); exposed culmen, 63-67 (65.2); height of 

 bill at nostrils, 24-25 (24.4) ; tarsus, 64.5-73 (68.4) ; middle toe 

 without claw, 42-46.5 (44.1). 



Female:- wing, 370-412 (average, 389.5); tail, 207-235 

 (218.8); exposed culmen, 57-68 (61.7); height of bill at nostrils, 

 21.5-24.5 (22.7); tarsus, 63-70 (66.6); middle toe without claw, 

 39-47.5 (42.2). 



Type locality. — Clarion Island, Revillagigedo Islands, Colima, 

 Mexico. 



Geographic distribution. — Southwestern United States and 

 extreme northwestern Mexico. Breeds north to Umatilla, 

 central northern Oregon; west to Narrows, central northern 

 Oregon; Fort Klamath, central southern Oregon; Humboldt 

 Bay, northwestern California; the Santa Barbara Islands, 

 southwestern California; and Cerros Island, western Lower 

 California; south to the Revillagigedo Islands, Colima, Mexico; 

 east to Porto Bolandra, southeastern Lower California; the 

 eastern coast of Lower California; Tucson and Apache, south- 



'Six specimens, from the Revillagigedo Islands, Lower California, and the 

 Santa Barbara Islands, California. 



-Sixteen specimens, from the Revillagigedo Islands, Lower California, and the 

 Santa Barbara Islands, California. 



