348 University of California Publications in Zoology (Vou. 17 
little less than half as high as ear conch; terminal joint of tail ex- 
serted. (For skull and teeth, see under species. ) 
The genus as occurring in California is represented by two closely 
related species, Antrozous pallidus and A. pacificus. 
Antrozous pallidus (Le Conte) 
Desert Pallid Bat 
V [espertilio|. pallidus LeConte (1855, p. 437). Original description; type 
locality, El Paso, Texas (Baird, 1859, II, p. 5). 
Vespertilio pallidus, Baird (1859, II, pp. 4-5), part. Description; re- 
corded from ‘‘ California. ’’ 
Antrozous pallidus, H. Allen (1864, pp. 68-69, 3 figs. in text), part. De- 
scription; distribution (includes ‘‘Ft. Yuma’’). 
Antrozous pallidus, Coues (1867, p. 283). Habits. 
Antrozous pallidus, Cooper (1868, p. 6), part. Distribution. 
Antrozous pallidus, Cooper (in Cronise, 1868, p. 442). Occurrence in Cali- 
fornia. 
Antrozous pallidus, Coues and Yarrow (1875, pp. 85-86), part. Diagnosis; 
range; habits: 
Antrozous pallidus, Dobson (1878, p. 171, pl. 11, figs. 6-6b). Description. 
Recorded from ‘‘California’’ and ‘‘Mammoth Valley, California.’’ 
Antrozous pallidus, Bryant (1891a, p. 358), part. Nominal. 
Antrozous pallidus, H. Allen (1894, pp. 66-70, pl. 8), part. Description; 
distribution. 
Antrozous pallidus pallidus, Miller (1897b, pp. 43-45, pl. 1, fig. 10, 4 figs. 
in text). Description; distribution; recorded from Fort Yuma, Owens 
Valley, Panamint Valley, and Walker Basin. 
Antrozous pallidus, Elliot (1901, pp. 396-897, fig. 82). Description; general 
distribution. 
Antrozous pallidus, Miller and Rehn (1901, pp. 266-267). Type locality. 
Antrozous pallidus, Elliot (1904a, p. 319). Distribution in California; 
recorded from Lone Pine and Coso Mountains, in Inyo County. 
Antrozous pallidus, Elliot (1904b, pp. 605-607, fig. 115). Description; 
general distribution. 
Antrozous pallidus, Stephens (1906, p. 263, fig. in text). Description; 
distribution. 
Antrozous pallidus, Elliot (1907, p. 518). Records repeated. 
» Antrozous pallidus pallidus, Lyon and Osgood (1909, pp. 278-279). Loca- 
tion and condition of type. 
Antrozous pallidus paliidus, Miller (1912, p. 68). General range. 
Antrozous pallidus pallidus, J. Grinnell (1913b, p. 282). Range in Cali- 
fornia. 
Antrozous pallidus pallidus, J. Grinnell (1914, p. 263). Occurrence along 
Colorado River. 
Diagnosis —F orearm 46 to 51.4 millimeters long; greatest length 
of skull, 19.4 to 21.0; color, whitish drab gray. 
Description: Head.—Muzzle squarely truneate, with a low but dis- 
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