580 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



part.— Bailey (Florence M.), Handb. Birds W. U. S., 1902, 228, part (Vera- 



gua).— Cole, Bull. Mus. Comp. ZooL, 1, 1906, 126 (Chichen-Itza, Yucatan).— 



Carriker, An. Carnegie Mus., vi, 1910, 501 (Pigres, San Jos^, Lim6n, and 



Bolson, Costa Rica). 

 Ch[ordeiles] acutipennis texensis Hartert, Tierreich, Podarg., Caprim., Macropt, 



1897, 20, part. 

 [Chordeiles acutipennis. 1 Subsp. /?. Chordeiles texensis Hartert, Cat. Birds Brit. 



Mus., xvi, 1892, 616, part (Tehuantepec; Tonala, Chiapas; Cozumel Island; 



? Ruatan Island; San Geronimo, Guatamala; Realejo, Nicaragua; Veragua, 



Panama). 

 Caprimulgus texensis Koenig-AVarthausen, Journ. fiir Orn., xvi, 1868, 376, part. 

 Chordediles acutipennis texensis Coues, Check List, 2d ed., 1882, no. 402, part. 

 C\hordediles'\ acutipennis texensis Coues, Key N. Am. Birds, 2d ed., 1884, 4bA, 



part. 

 Chordeiles acutipennis micromeris Oberuolser. Bull. 86, U. S. Nat. Mus., 1914, 



100. 



CHORDEILES ACUTIPENNIS INFERIOR Oberholser. 



SAN LUCAS NIGHTHAWK. 



Similar to C. a. micromeris but larger; upper parts lighter and 

 averaging more brownish (less grayish), and paler bars on tail broader. 



Adult male. —Length, (skins), 218-222 (220)«; wmg, 171.5-184.5 

 (176.2); tail, 99-115 (107.1); exposed culmen, 4.9-6.5 (5.7); tarsus, 

 12.5-14.5 (13.5); middle toe, 13.2-15.1 (14).^ 



Adult female.— Length (skins), 194-205 (198)^; wing, 165-177 

 (168.1); tail, 99-105 (102.3); culmen, 5-6 (5.4); tarsus, 12.1-13.7 

 (13); middle toe, 12.5-14.8 (13.7).'^ 



Lower California, from the San Pedro Martir district (La Grulla; 

 Santa Cruz; Valladeros) and San Fernando to Cape San Lucas dis- 

 trict (San Jose del Cabo; La Paz; Triunfo; Sierra de la Laguna; 

 Pearce's Ranch) . 



Chordeiles texensis (not of Cassin) Baird, Proc. Ac. Nat. Sci. Phila., 1859, 301, 303 

 (Cape San Lucas, Lower California); Cat. N. Am. Birds, 1859, no. 116, 

 part. — ScLATER, Proc. Zool. Soc. Lond., 1866, 134, part (monogr.); Journ. 

 fur Cm., 1867, 264, part.— Coues, Check List, 1873, no. 268, part.— American 

 Ornithologists' Union, Check List, 1886, no. 421, part (Cape San Lucas). — ■ 

 Bryant (W. E.), Proc. Calif. Ac. Sci., 2d ser., ii, 1889, 288 (Cape district, 

 Lower California). — Kaeding, Condor, vii, 1905, 134 (San Jose del Cabo, 

 Lower California). 



[Chordeiles] texensis Coues, Key N. Am. Birds, 1872, 182, part (Cape San Lucas). — 

 ScLATERand Salvin, Nom. Av. Neotr., 1873, 96, part. — Sharpe, Hand-list, 

 ii, 1900, 80, part. 



C[hordeiks] texensis Ridgway, Man. N. Am. Birds, 1887, 301, part. 



Chordeiles acutipennis, var. texensis Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 406, part (Cape San Lucas, breeding). 



Chordeiles acutipennis texensis Ridgway, Proc. U. S. Nat. Mus., iii, March 27, 

 1880, 5, part (crit. nom.), 188, part; Nom. N. Am. Birds, 1881, no. 358, part.— 

 Belding, Proc. U. S. Nat. Mus., v, 1882, 543 (La Paz and San Jos6 del Cabo, 



o Two specimens. '^ Five specimens. 



b Ten specimens. ^ Nine specimens. 



