BIRDS OF NORTH AND MIDDLE AMERICA 289 



LOPHORTYX CALIFORNICA ACHRUSTERA Peters 



San Lucas Quail 



Adult: male. — Similar to that of the nominate race but back darker, 

 averaging more gray than brown in fresh pkimage (the opposite is true 

 in typical calif ornica) ; the breast deep neutral gray (darker than the 

 race pluiiibea of northern Baja California). 



Adult feiiiale. — Similar to that of the nominate race but the back de- 

 cidedly grayish rather than brownish, the breast grayish drab to light 

 grayish drab. From the races canficldae and orccta this form differs in 

 being slightly less grayish above. 



Other plumage like the corresponding ones of the nominate race. 



Adult mde.—Wmg 107-114 (110); tail 86-100 (91); culmen from 

 .base 14—17 (15.4); tarsus 28.5-33 (31.2); middle toe without claw 

 24-27 (25.8 mm.).^» 



Adidt female.— Wing 105-108 (106) ; tail 81-88 (84.9) ; culmen from 

 base 14.5-15.5 (15); tarsus 29-31 (30.2); middle toe without claw 

 24-25.5 (24.8 mm.). «'> 



Range. — Resident in the southern half or more of Baja California from 

 Cape San Lucas north to about latitude 30° N. 



Type locality. — La Paz, Baja California. 



Lophortyx calif ornicus Baird, Proc. Acad. Nat. Sci. Philadelphia, 1859, 305 (Cape 

 San Lucas) ; Cat. North Amer. Birds, 1859, No. 474, part. — Ogilvie-Grant, 

 Cat. Birds Brit. Mus., xxii, 1893, 400 part (Cape San Lucas). 



Lophortyx catif ornica Belding, Proc. U. S. Nat. Mus., v, 1883, 544 (Cape San Lucas). 

 — Beristain and Laurencio, Mem. y Rev. Soc. Cient. "Antonio Alzate," vii, 

 1894, 219 part (Baja California; part). 



Lophortyx calif ornica vallicola Bryant, Proc. California Acad. Sci., ser. 2, ii, 1889, 

 276, part (Cape San Lucas region). — Townsend, Bull. Amer. Mus. Nat. Hist., 

 xlviii, 1923, 13 (Gulf Coast of Baja California from Cape San Lucas to Agua 

 Verde Bay). — Mailliard, Proc. California Acad. Sci., ser. 4, xiii, 1923, 454 (San 

 Francisquito Bay, Point Santa Antonita, and Agua Verde Bay, Baja California, 

 May). 



Callipepla californica vallicola Townsend, Proc. U. S. Nat. Mus., xiii, 1890, 136 

 (Cape San Lucas).— Anthony, Zoe, iv, 1893, 232 (Baja California; habits); 

 Auk, xii, 1895, 136 (San Fernando, Baja California). 



Lophortyx calif ornicus vallicola Brewster, Bull. Mus. Comp. Zool., xli, 1902 (Tri- 

 unfo, San Jose del Rancho, La Paz, and Sierra de la Laguna, s. Baja Cali- 

 fornia; crit). 



[Lophorty.v] vallicola Sharpe, Hand-list, i, 1899, 44, part. 



Lophortyx californica achrustera Peters, Proc. New England Zool. Club, viii, 1923, 

 79 (La Paz, Baja California; orig. descr. ; crit.). — Oberholser, Auk, xli, 1924, 

 .S92 (addition to North Amer. Check-list). — Grinnell, Condor, xxviii, 1926, 128, 

 in text (crit.) ; Univ. California Publ. Zool., xxxii, 1928, 103 (distr. in Baja 

 California). — Bangs, Bull. Mus. Comp. Zool., Ixx, 1930, 159 (type spec, in 



Twenty specimens. 

 Five specimens. 



