538 Annals of the Carnegie Museum. 



Zool., L, 1906, 117 (Chichen-Itza and San Ignacio, Yucatan). — Lamb, Condor, 

 XII, 1910, 76 (Las Marietas I., Mexico). 



Columbogallina passerina pallescens Lantz, Trans. Kansas Acad. Sci., XVI, 1899, 

 219 (La Paz, Lower California). 



"Mexican Ground Dove" Littlejohn, Bull. Cooper Orn. Club, I, 1899, 73 (Pes- 

 cadero, California, one record). — Brown, Auk, XVII, 1900, 33 (southern Ari- 

 zona). — Lamb, Condor, XII, 1910, 78 (Las Penas, Banderas Bay, Mexico). — 

 Willard, Condor, XIV, 1912, 58 (Dos Reales, Arizona; nesting habits). — Sloan • 

 Bird-Lore, XIV, 1912, 34 (Palacios, Texas). 



Columbigallina passerina var. pallescens Dubois, Syn. Avium, II, 1902, 763, part 

 (southwestern United States; Lower California; Mexico; syn.). 



Columbigallina passerina pallascens (lapsus) Kaeding, Condor, VII, 1905, 111 

 (San Jose del Cabo, Lower California). 



Chcemepelia passerina pallescens Howell, Bull. Biol. Survey, No. 29, 1907, 31 

 (Texas; food). — Dearborn, Field Mus. Orn. Series, I, 1907, 80 (Gualan and 

 Lake Atitlan, Guatemala). — American Ornithologists' LTnion Committee, 

 Auk, XXVI, 1909, 297 (crit.). — Knowlton, Birds of the World, 1909, 432, in 

 text, part (Mexico; habits). — Visher, Auk, XXVII, 1910, 281 (Tucson, Arizona). 

 — American Ornithologists' Union Committee, Check List N. Am. Birds, 

 ed. 3, 1910, 150, part (geog. distr., excl. Central America). — Carriker, Ann. 

 Carnegie Mus., VI, 1910, 398, in text (crit.). — Willard, Condor, XIV, 1912, 53 

 (near Tucson, Arizona). — Willett, Pacific Coast Avifauna, No. 7, 1912, 44 

 (San Gabriel, Los Angeles Co., Banning, Riverside Co., and San Pasqual, San 

 Diego Co., California). — Grinnell, Pacific Coast Avifauna, No. 8, 1912, 13 

 (California). 



Subspecific characters. — Similar to C. p. passerina, but averaging 

 decidedly paler, more drab gray, both above and below, this difference 

 obvious in both sexes; maxilla darker at base (in dried skin), dull 

 crimson, brownish red, or purplish black in life. 



Measurements. — -Male: wing, 83-91 (average, 87); tail, 57-63 (59.5); 

 exposed culmen, 11-12 (11.5); tarsus, 15-16 (15.6). Female: wing, 

 84-90 (86.5); tail, 57-62 (59); exposed culmen, 11-12 (11.5); tarsus, 

 15-16 (15.7). 



Range. — From British Honduras and northern Guatemala north 

 through Yucatan and Campeche, and northwestward through Mexico 

 (except central plateau region) to southern Texas and southern 

 Arizona; Cape region of Lower California; accidental in southern 

 California. 



Remarks. — Two nestlings of this form (Nos. 155,433-4, Collection 

 Biological Survey), from the mountains near San Domingo, Oaxaca, 

 June 18, 1895, are the youngest of any form of the species I have 

 examined. They still show remains of buffy white natal down 

 clinging to the tips of the juvenal feathers. The general color of the 



