Todd : A Revision of the Genus Chjemepelia. r>43 



collected by Bridges, and identified as Chamcepelia granatina by 

 Canon Tristram. None of the recent workers in this field seem to 

 have nu't with the species, although ('. minuta is common enough, and 

 very possibly the specimen in question may belong to this latter 

 species. 



[ris in both sexes "lighl yellow with pink tinge" (Underwood), or 

 "pink" (Carriker). Feet "flesh-color" (Carriker and Underwood). 

 Bill in both sexes "dark crimson" (Underwood), "pink with dusky 

 tip." or "purplish blood, with tip black" (Carriker). 



Chaemepelia passerina socorroensis (Ridgway). 



Chamcepelia pallescens (not of Baird) Lawrence, Proc. Boston Soc. Nat. Hist., 

 XIV, 1872, 275, part (Socorro I.). — Grayson, Proc. Boston Soc. Nat. Hist., 

 XIV, 1872, 300, part (Socorro I.). 



Chasmepelia pallescens Lawrence, Mem. Boston Soc. Nat. Hist., II, 1874, 305, part 

 (Socorro I.). 



Columbigallina passerina socorroensis Ridgway, Man. N. Am. Birds, 1887, 586 

 (Socorro I.; Tres Marias Is.?; orig. dcscr.; type in collection U. S. National Mu- 

 seum). — Townsend, Proc. U. S. Nat. Mus., XIII, 1890, 135 (Socorro I.). — 

 Anthony, Auk, XV, 1898, 316 (Socorro I.). — Kaeding, Condor, VII, 1905, in 

 (Socorro I.). 



Chamcepelia passerina (not Columba passerina Linnaeus) Salvadori, Cat. Birds 

 Brit. Mus., XXI, 1893, 473, part (Socorro I.). 



Chamcepelia socorroensis Sharpe, Hand-List Birds, I, 1899, 81 (Socorro I.). 

 — Salyin and Godman, Biol. Centr.-Am., Aves, III, 1902, 252 (Socorro I.; 

 descr.; references; crit.). — Lowe, Ibis, 1908, 112 (Socorro I., ex Ridgway). 



Columbigallina passerina var. socorroensis Dubois, Syn. Avium, II, 1902, 764 

 (Socorro I., ex Ridgway). 



Sub specific characters. — Similar to C. p. neglecta, but wing shorter, 

 and general coloration darker, the upper parts of the male being 

 decidedly olive-brown, and the Hanks pale brown. Female also 

 very much darker and browner than the female of C. p. neglecta. 



Measurements. — Male: wing, 81-85 (average, 83); tail, 52-58 (56); 

 exposed culmen, 11-12 (11.5); tarsus, 15-16. 5 (16). Female: wing, 

 81-84 (82); tail, 55-59 (56); exposed culmen, 11- 12 (11.5); tarsus, 

 16-17 (16.2). 



Range. — Socorro Island, off the west coast of Mexico; accidental 

 on the Tres Marias Islands and the adjacent mainland (?). 



Remarks. — This very distinct insular form is characterized by its 

 dark coloration, the upper parts being decidedly brown, deeper than 

 in C. p. neglecta, to which otherwise it would seem to be most closely 



