HYPOTHETICAL LIST. 329 



FAMILY CATHARTIDJB. 



GENUS GrYPAG-US VIEILLOT. 



Gypagus VIEILL. Analyse, 1816, 21. Type, by elimination, 

 Vultur papa LINN. 



12. Gypagus papa (LINN.). 



King Vulture. 



Vultur papa LINN. S. N. ed. 10, I. 1758, 86. 



Gypagus papa VIEILL. Nouv. Diet. d'Hist. Nat. XXXVI. 1819, 



45 6 - 



[B- C , R-, C .] 



GEOG. DIST. Tropical continental America. Recorded as occur- 

 ring on the Rio Verde, Arizona, but its identity not satisfactorily 

 determined. (Cf. COUES, Bull. Nutt. Orn. Club, VI. 1881, p. 248.) 



13. Cathartes burrovianus CASS. 



Burroughs's Turkey Vulture. 



Cathartes burrovianus CASS. Pr. Ac. Nat. Sci. Phila. II. 1845, 2I2 - 

 [B 4, C R , C .] 



GEOG. DIST. Mexico and eastern South America. Reported as 

 having been seen near Brownsville, Texas. (Cf. DRESSER, Ibis, 1865, 

 p. 322.) 



FAMILY FALCONID.ffi. 



14. Buteo cooperi CASS. 



Cooper's Henhawk. 



Buteo cooperi CASS. Pr. Ac. Nat. Sci. Phila. VIII. 1856, 253. 



[629, C 349 , R437, C 514-] 



Probably the light phase of B. harlani AUD. (Cf. RIDGW. Auk, 

 I. 1884, pp. 253, 254; ibid., II. 1885, pp. 165, 166.) 



