444 Supplement to the A. O. U. Check-List. Fe 
July 
Aegialitis Boie becomes Charadrius Linnacus, because the type of 
Charadrius Linnaeus is, by tautonymy, Charadrius hiaticula Lin- 
naeus. (Cf. Mathews, Novit. Zool., XVIII, No. 1, June 17, 1911, 
pp. 5-6.) The North American species are: 
274. Charadrius semipalmatus Bonaparte. 
275. Charadrius hiaticula Linnaeus. 
. Charadrius dubius Scopoli. 
77. Charadrius melodus Ord. 
78. Charadrius nivosus (Cassin). 
279. Charadrius mongolus Pallas. 
Chaemepelia passerina terrestris (Chapman) becomes Chaemepelia 
passerina passerina (Linnaeus) (Columba passerina Linnaeus, Syst. 
Nat. ed. 10, I, 1758, p. 165; “America inter tropicos’”’), because 
Bonaparte in 1855 was the first author to fix the type locality of 
Columba passerina Linnaeus, and he restricted it to North America. 
(Cf. Todd, Annals Carnegie Mus., VIII, 1913, p. 533.) 
Catharista Vieillot becomes Coragyps Geoffroy (Le Maout, Hist. Nat. 
Oiseaux, 1853, p. 66; type Vultur wrubu Vieillot), because the type 
of the former proves to be Vultur aura Linnaeus, and Coragyps Geof- 
froy is therefore the earliest tenable generic name for the Black Vul- 
ture. (Cf. Stone, Princeton Patag. Exped., II, pt. IV, 1915, p. 540; 
Chubb, Birds Brit. Guiana, I, 1916, p. 208.) The only North Amer- 
ican form is 
326. Coragyps urubu urubu (Vieillot). 
Aluco Fleming becomes Tyto Billberg (Synop. Faunae Scand., I, pars 2, 
1828, tab. A; new name for Strix Savigny; type, Strix alba Scopoli), 
because Aluco Fleming 1822 is preoccupied by Aluco Link 1807; and 
because T'yto Billberg, not being invalidated by Tyla Billberg, 1820, 
a word of different classical termination, is the earliest available name. 
(Cf. Mathews, Novit. Zool., XVII, No. 3, Dec. 15, 1910, p. 500.) 
Oreospiza Ridgway becomes Oberholseria Richmond (Proc. Biol. Soc. 
Wash., XXVIII, Nov. 29, 1915, p. 180; type by original designation, 
Fringilla chlorura Audubon), because Oreospiza Ridgway 1896 is 
preoccupied by Oreospiza Keitel 1857, and Oberholseria is proposed 
in its place. (Cf. Richmond, loc. cit.) The only species is 
592. 1. Oberholseria chlorura (Audubon). 
Mniotiltidae becomes Compsothlypidae, because Compsothlyp 
Cabanis, not Mniotilta Vieillot, is the type genus of the family. (Cis 
Oberholser, Pro:. Biol. Soc. Wash., XXXII, April 11, 1919, p. 46%: 
Helinaia Audubon becomes Limnothlypis Stone (Science, N. 8., XU) 
No. 1018, July 3, 1914, p. 26; type by original designation and mono-, 
typy, Sylvia swainsonii Audubon), because the type of Helinaia 
Audubon is, by subsequent designation (Gray, List Gen. Birds, ed. 
2, 1841, p. 33), Motacilla vermivora Gmelin, which makes Helinaia a 
synonym o! Helmitheros Rafinesque. (Cf. Stone, loc. cit., and Rieh- 
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