Vo1 ' 1920 XY11 ] Proposed Changes in the A.O.U. Check-List. 281 



XXXVI, No. 2, April, 1919, p. 286.) The only North American 



species is : 



Hypocentor rusticus (Pallas) . 

 fPasserculus rostratus halophilus (McGregor). Ammodramus halo- 



philus McGregor, The Auk, XV, No. 3, July, 1898, p. 265 (Abreojos 



Point, Lower California). Reinstated as a subspecies. (Cf. Ober- 



holser, Ohio Journ. Sci., XIX, No. 6, April (May) 1919, p. 353.) 



Range: southern half of western coast of Lower California. 

 Centronyx Baird, Rep. Explor. and Surv. R. R. Pac, IX, 1858, p. 440 



(type, Ember iza bairdii Audubon). Raised to generic rank. (Cf. 



Oberholser, Proc. Biol. Soc. Wash., XXXII, June 27, 1919, p. 141.) 



The only species therefore becomes 

 Centronyx bairdii (Audubon). 

 Passerherbulus leconteii (Audubon) becomes Passerherbulus cauda- 



cutus Latham (Fringilla caudacula Latham, Index Ornith., I, 1790, 



p. 459), because antedated by this name. (Cf. Oberholser, Proc. 



Biol. Soc. Wash., XXXII, April 11, 1919, p. 47.) 

 fThryospiza mirabilis Howell. New species. Howell, The Auk, 



XXXVI, No. 1, January, 1919, p. 86 (Cape Sable, Florida). Range: 



extreme southern Florida. 

 Spizella monticola (Gmelin) becomes Spizella arborea Wilson 



(Fringilla arborea Wilson, Amer. Ornith., II, 1810, p. 123, pi. XVI, 



fig. 3; eastern Pennsylvania), since Fringilla monticola Gmelin is a 



synonym of Zonotrichia leucophrys. (Cf. Oberholser, Proc. Biol. Soc. 



Wash., XXXII, June 27, 1919, p. 139.) The subspecies of the Tree 



Sparrow will, therefore, stand as follows: 

 Spizella arborea arborea (Wilson). 

 Spizella arborea ochracea Brewster. 

 fJunco oreganus pontilis Oberholser. New subspecies. Oberholser, 



Condor, XXI, No. 3, June 6, 1919, p. 119 (El Rayo, Hanson Laguna 



Mts., northern Lower Calif.). Range: Hanson Laguna Mountains, 



Lower California. 

 Junco mearnsi townsendi Anthony becomes Junco oreganus town- 



sendi Anthony, because found to be subspecifically connected with 



Junco oreganus. (Cf. Oberholser, Condor, XXI, No. 3, June 6, 1919, 



p. 120.) 

 Junco mearnsi insularis Ridgway becomes Junco insularis Ridgway, 



because considered to be a distinct species. (Cf. Miller, The Auk, 



XXXVI, No. 2, April, 1919, p. 296.) 

 fMelospiza melodia semidiensis Brooks. New subspecies. Melo- 



spizia [sic] cineria [sic] semidiensis Brooks, Proc. New Engl. Zool. 



Club, VII, Nov. 4, 1919, p. 27 (North Semidi Island, Semidi Islands, 



Alaska. 

 tPipilo fuscus aripolius Oberholser. New subspecies. Oberholser, 



Condor, XXI, No. 5, Sept. 30, 1919, p. 210 (San Pablo, Lower Calif.). 



Range: middle Lower California. 



