156 
JOURNAL OF MAMMALOGY 
BATS FROM NEW MEXICO AND ARIZONA 
By Glover M. Allen 
Due to the generous interest of Col. John E. Thayer and Dr. Thomas 
Barbour, the Museum of Comparative Zoology has lately received a 
number of bats from New Mexico and Arizona a few notes on which 
seem worth recording. They were obtained chiefly by Messrs. Wharton 
Huber and R. D. Camp, the former while collecting in the vicinity of 
Las Cruces, New Mexico, for Colonel Thayer, and Mr. Camp during 
an expedition to the desert ranges of the Huachuca, Oro Blanco, Caye- 
tano, and Patagonia Mountains of southeastern Arizona. The follow- 
ing ten species are represented. 
Macrotus califomicus Baird 
CALIFORNIA LEAF-NOSED BAT 
This species is well known to inhabit the hotter portions of southern 
California and Arizona. Rehn (1904) has recorded specimens from 
Tombstone, Arizona, and there is a specimen in the United States 
National Museum from near Tucson. The Camp collection contains 
fifteen of these bats, captured in a deserted mine tunnel, January 24, 
in the Cayetano Mountains, Arizona, at 4000 feet altitude. All but 
two were adult females. According to Mrs. GrinnelFs observations in 
California, it seems likely that this species is somewhat migratory; 
at least, they withdraw in winter from certain localities where they 
were found in spring and summer. Two other specimens are from 
Superior, Arizona. 
Choeronycteris mexicana Tschudi 
LONG-NOSED BAT 
An adult female secured by Mr. W. W. Brown in the Huachuca 
Mountains, September 27, 1920, is apparently the second specimen 
to be taken within the United States. The other record is of one cap- 
tured in the Chiricahua Mountains, eight ihiles west of Paradise, 
Arizona, August 17, 1904 (see Miller, 1906). A comparison of our 
specimen with a female from Morelos, Mexico, reveals no important 
differences, though the skull of the former is a trifle the smaller. It 
is interesting in possessing on the right side of the upper jaw, a persist- 
ent milk tooth, directly behind and in contact with the canine. The 
