352 University of California Publications in Zoology  |Vou.17 
could be continually heard scratching and squeaking in their retreats. 
When caught or disabled they squeaked harshly and bit with vigor 
and considerable effect, if incautiously handled. 
Bailey (1905, pp. 214-215) reports these bats as occurring in west- 
ern Texas between April 18 and October 11, but adds that these limits 
are apparently dates of collectors’ entering and leaving the region 
rather than of the migration of the bats. During the day the bats 
were found by the collectors in crevices of buildings and behind sign- 
boards, and, as they occurred also in rocky country where there were 
no buildings, Bailey considers it probable that they there hid in 
crevices of the cliffs during the day. This author describes their 
flight as soft and noiseless, and while rapid, not so jerky and quick 
as that of most bats. He adds that the light color and large size 
render this species of bat unmistakable in the early evening. 
J. Grinnell (1914, p. 263) states that a female taken April 20 
on the Colorado River, eight miles east of Picacho, contained two 
embryos; and Stephens (MS) notes that a specimen taken at San 
Bernardino, May 16, contained three embryos. 
Antrozous pacificus Merriam 
Pacifie Pallid Bat 
Vespertilio pallidus, Baird (1859, II, pp. 4-5), part? Description; recorded 
from ‘‘California.’’ 
Antrozous pallidus, H. Allen (1864, pp. 68-69, 3 figs. in text), part. De- 
scription; recorded from ‘‘Posa Creek,’’ Tejon Valley, and Ft. Tejon, 
Kern County. 
Antrozous pallidus, Cooper (1868, p. 6), part. Distribution. 
Antrozous pallidus, Coues and Yarrow (1875, pp. 85-86), part. Diagnosis; 
range; habits. 
Antrozous pallidus, H. Allen (1894, pp. 66-70, pls. 8-9), part. Description. 
Antrozous pallidus pacificus Merriam (1897, pp. 179-180). Original de- 
scription; type locality, Fort Tejon. 
Antrozous pallidus pacificus, Miller (1897b, pp. 45-46, 1 fig. in text). De- 
scription; distribution; several California localities listed. 
Antrozous pallidus pacificus, Elliot (1901, p. 397). Diagnosis. 
Antrozous pallidus pacificus, Miller and Rehn (1901, p. 267). Type 
locality. 
Antrozous pallidus pacificus, Elliot (1904a, pp. 319-320). Occurrence at 
Fort Tejon; habits. 
Antrozous pallidus pacificus, Elliot (1904b, p. 607). Diagnosis; distri- 
bution. 
Antrozous pallidus pacificus, Stone (1904b, p. 587). Record of specimens 
secured at Berkeley. 
Antrozous pallidus pacificus, Stephens (1906, p. 263). Diagnosis; distri- 
bution. 
