APPENDIX. 379 



Genus CIRCUS. Type by subsequent designation of Lessou 

 (Man. d'Oi-n. i. 1828, p. 105) : C. ceruginosus (Linn.). 



CircTis pygargus. Linnasus' description of this species is 

 founded on Albin's Ringtail (Birds, ii. 1738, pi. v.), 

 which represents Montagu's Harrier (c/. Rothschild, 

 Bull. B. 0. 0. xxxiii. 1913, p. 75); C. pygargus has 

 many years' priority to Circus cineraceus Montagu 

 (Orn. Diet. i. Falcon, sp. 2, 1802), the name used in 

 the first edition of the List. 



Genus BUTEO. Type by tautonymy : B. huteo (Linn.) . 



Archihuteo Brehni (Isis, 1828, p. 1269) is a genus 

 without a definite type and is an exactly similar case 

 to that of ^ydala. As, however, the distinctions be- 

 tween the genera Buteo and Arcliibuteo rest only on the 

 amount of the tarsal feathering, and as several Asiatic 

 species vary in this point, the Committee have decided 

 to reject Arcliibuteo as a separate genus. 



Buteo buteo. In Linnseus' description the locality is given 

 as Europe. The first reference is to Gesner, who 

 observed the Buzzard in Savoy, which may therefore 

 be taken as the typical localit}-. In the first edition of 

 the List the name B. vulgaris was iised to avoid using 

 the same generic and specific name. 



Genus ACITJILA. Type by tautonymy: A. aquila Briss. = 

 A. chrgsai'tus (Linn.). 



Aquila fasca. The name used until recently for the Great 

 Spotted Eagle was Falco maculatus Gmel., 1788. Unfor- 

 tunately this is antedated by Falco maculatus Tunstall, 

 1771, which =Pemis apivorus. We are therefore obliged 

 to use the next available name, Aquila fusca Brehm, 

 1823. Aquila danga Pallas, 1827, also refers to the 

 Greater Spotted Eagle, but is of later date, while Falco 

 na'vius Gmel., 1788, also at one time used for this species. 



