ZoO Proposed Changes in the A. 0. U. Check-List. [April 



Proc. Biol. Soc. Wash., XXXII, Dec. 31, 1919, p. 200.) The North 

 American forms are: 



Asarcia spinosa gymnostoma (Wagler) . 

 Asarcia spinosa violacea (Cory). 

 Tachytriorchis Kaup. Raised to generic rank. (Cf. Oberholser, The 

 Auk, XXXVI, No. 4, October, 1919, pp. 567-568.) Its only North 

 American species, now in the genus Buteo, therefore becomes 

 Tachytriorchis albicaudatus sennetti (Allen). 

 Archibuteo Brehm becomes a subgenus of Buteo Lacepede, because not 

 trenchantly separable. (Cf. Hartert, Hand-List Brit. Birds, 1912, 

 p. 115; Vogel palaarkt. Fauna, Heft IX [Band II, Heft 3], Octo- 

 ber, 1914, pp. 1114, 1128-1131; Oberholser, The Auk, XXXVI, 

 No. 3, July, 1919, pp. 420-421). The North American forms of 

 Archibuteo will therefore now stand as 



Buteo lagopus sanctijohannis (Gmelin). 

 Buteo ferrugineus (Lichtenstein). 

 fThallasoaetus pelagicus (Pallas). Aquila pelagica Pallas, Zoogr. 

 Rosso-Asiat., I, 1811, p. 343, pi. (islands between Kamchatka 



and America). Recorded as North American from a specimen 

 obtained on the Pribilof Islands, Alaska. (Cf. Hanna, Journ. Wash. 

 Acad. Sci., IX, No. 6, March 19, 1919, p. 176.) 

 tMelanerpes erythrocephalus erythrophthalmus Silloway. Melan- 

 erpes erythrophthalmus Silloway, Bull. Fergus County Free High 

 School, No. 1, 1903, p. 36 (Lewistown, Fergus Co., Montana). Re- 

 vived as a subspecies. (Cf. Oberholser, Canadian Field-Naturalist, 

 XXXIII, No. 3, Sept, (Oct, 4) 1919, p. 48.) 

 t Frugilegus Selys-Longchamps (Faune Beige, I, 1842, p. 68; type, 

 Corvus frugilegus Linnaeus). Recognized as a genus. (Cf. Ober- 

 holser, Proc. Biol. Soc. Wash., XXXII, June 27, 1919, p. 141.) In- 

 cludes one North American species now in the genus Corvus: 

 Frugilegus frugilegus (Linnaeus). 

 Agelaius phoeniceus richmondi becomes, so far as North America is 

 concerned, Agelaius phoeniceus megapotamus Oberholser. New 

 subspecies. Oberholser, Wilson Bull., XXXI, No. 1, March, 1919, 

 p. 20 (Brownsville, Texas). Range: Texas to northern Vera Cruz, 

 Mexico. 

 Quiscalus quiscula versicolor Vieillot becomes Quiscalus quiscula 

 ridgwayi Oberholser. New subspecies, Oberholser, The Auk, 

 XXXVI, No. 4, October, 1919, p. 552 (Washington, D. C). Range: 

 middle eastern United States. 

 Passer domesticus hostilis Kleinschmidt becomes Passer domesticus 

 domesticus (Linnaeus), because not subspecifically distinct. (Cf. 

 Witherby, Pract, Handbook Brit. Birds, pt. II, 1919, p. 101.) 

 fHypocentor Cabanis, Mus. Hein., I, 1851, p. 131 (type, Ember iza aureola 

 Pallas). Recognized as a genus. (Cf. Oberholser, The Auk, 



