340 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



Adult female.— \Nmg 238-248 (243.2); tail 174.8-177.5 (176.3); 

 culmcn from cere 16.5-21 (19.4); tarsus 64.5-67.5 (65.9); middle toe 

 without claw 29-34.7 (32.8 mm.) (4 specimens). 



Range. — Resident from eastern and southern Mexico from Tamau- 

 lipas (Caballeros, Altamira, 60 miles south of Victoria, Santa Leonor, 

 Rio Cruz, etc.), Nuevo Le6n, to Veracruz (Rio Seco). 



Type locality. — Alirador, Veracruz, Mexico. 



Asturina magnirostris (not Falco magnirostris Gmelin) Sclater, Proc. Zool. Soc. 

 London, 1856, 285 (Veracruz); 1859, 368 (Jalapa, Veracruz); 1864, 178 

 (vicinity of Mexico City). — Salle and Parzudaki, Cat. Oiseaux Mexique, 

 1862, 1 (Mexico). — Bbhistain and Laurencio, Me.n. y Rev. Soc. Cient. 

 "Antonio Alzate," vii, 1894, 225 (^'xlexico). 



Buteo (fiupornis) magnirostris var. griseocauda Ridgway, Proc. Boston Soc. 

 Nat. Hist., xvi, 1873, 65 part (Rio Seco, Veracruz), 88, part (syn.; descr.; 

 "Mexico, from the Atlantic to the Pacific, from . . . Mirador to IMazatldn"; 

 tj'pe from Mirador, Mexico, in coll. U. S. Nat. Mus.). 



Buteo (Rupornis) magnirostris var. griseocauda Ridgway, Proc. Boston Soc. Nat. 

 Hist., xvi, 1873, 87 part (diagn.). 



Buteo magnirostris griseocauda Peters, Check-list Birds of World, i, 1931, 237, 

 part. — Sutton and Burleigh, Occ. Pap. Mus. Zool. Louisiana State Univ., 

 No. 3, 1939, 26 (ue. Mexico; Tamaulipas; Victoria, San Francisco, Guemes, 

 Arroyo de La Presa); Wils. Bull., lii, 1940, 233, in text (Mexico: Tamazun- 

 chale; nest.; spec); Condor, xlii, 1940, 259, in text (San Luis Potosi, Mexico; 

 fairly common). — van Rossem, Ann. Mag. Nat. Hist., ser. 11, iv, 1939, 440, 

 in text (crit.). — Brodkorb, Occ. Pap. I\Ius. Zool. Univ. Michigan, No. 425, 

 1940, 1, in text (crit.; type loc. restricted to Mirador, Veracruz), 3 (Ta- 

 maulipas: Rio Cruz, Caballos, Altamira, Santa Ijconor, 7 miles n. of Villagrdn; 

 Veracruz: Rio Seco, Presidio, Buena Vista, Medellin, MiniatitUn; Tabasco: 

 Balancan, La Reforma, Boca del Cerro, Tenosique, La Ribera; Chiapas: 

 Palenque, El Aguacate; Guatemala: Virginia Plantation); Misc. Publ. Mus. 

 Zool. Univ. Michigan, No. 56, 1943, 27 (Me.xico: Veracruz; Tabasco; Chiapas; 

 spec). — Sutton and Pettingill, Auk, lix, 1942, 9 (G6mez Farias region, sw. 

 Tamaulipas; spec). 



Rupornis magnirostris griseocauda Lawrence, U. S. Nat. Mus. Bull. 4, 1875, 39 

 (Chiliuildn, Almoloya, near Barrio, and Santa Efigenia, Oaxaca; fresh color 

 of unfeathered parts). — Ridgway, Proc. U. S. Nat. Mus., viii, 1885, 578, 579 

 in text (crit.). — Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 167 (Jalapa, 

 Veracruz). — Richmond, Proc. U. S. Nat. Mus., xviii, 1896, 628 (Altamira, 

 Veracruz) . 



Rupornis griseocauda Gurney, Ibis, 1876, 482, in text (crit.). 



Rupornis griseicauda Sharpe, Hand-list, i, 1899, 258, part. — Phillips, Auk, 

 xxviii, 1911, 73 (Altamira, Caballeros, Rio Cruz, and Santa Leonora, 

 Tamaulipas) . 



Rupornis ruficauda griseicauda Ridgway, Proc. U. S. Nat. Mus., viii, 1885, 94, 

 in text, part. 



Rupornis magnirostris griseicauda Swann, Sj'nopt. List Accip., pt. 2, 1919, 55, 

 part; Synop. Accip., ed. 2, 1922, 92, part; Monogr. Birds Prey, i, 1930, 440, 

 part (monogr.). — Bangs and Peters, Bull. Mus. Comp. Zool., Ixvii, 1927, 473 

 (Presidio, Veracruz). — Peters .and Griscom, Proc. New England Zool. Club, 

 xi, 1929,44, part (crit.; chars.; distr.). — Heilfurth, Journ. fiir Orn., Ixxviii, 



