),
and Handley (1955:48) based his description of _Corynorhinus
tetralophodon_ on a specimen from San Josecito.

Brief descriptions of the cave have been published by Miller (1943) and
Stock (1943). The precise age of the deposits is unknown;
stratification data did not accompany the material sent on loan to the
University of Kansas. However, most of the micro-fauna is thought to
have come from the higher levels in the cave and is probably late
Pleistocene.

The San Josecito Cave collections are currently the property of the Los
Angeles County Museum.

I am grateful to Dr. E. Raymond Hall for permission to study the bats
from San Josecito Cave, to Dr. Robert W. Wilson for criticism of the
manuscript, and to Mr. Philip Hershkovitz for permission to use
comparative material at the Chicago Natural History Museum. Lucy Rempel
made the drawings from photographs by John M. Legler.

_Leptonycteris nivalis_ (Saussure)

_Referred material._--Seventy crania, LACM (CIT) 2951-54,
2956-64, 3114-22, 3124-25, 3127, 3131-35, 3137-41, 3143-55,
3942, 21 unnumbered, of which 35 are nearly complete,
lacking zygomatic arches, auditory bullae and some teeth;
three rami, one right, LACM (CIT) 3126, and two left,
unnumbered.

_Remarks._--The long-nosed bats from San Josecito Cave do not differ
appreciably from _Leptonycteris nivalis longala_ Stains, the largest
Recent subspecies of the species, and the subspecies that occurs in the
same geographic area today. Average and extremes of three cranial
measurements of 22 specimens from San Josecito Cave, followed in
parentheses by the average and extreme measurements of 23 adult _L. n.
longala_ from the type locality, 12 mi. S and 2 mi. E Arteaga, 7500
ft., Coahuila (after Stains, 1957: 356), are: Greatest length of skull,
28.2, 27.2-28.9 (27.5, 26.1-29.0); least interorbital constriction,
5.0, 4.8-5.4 (4.8, 4.1-5.4); breadth of braincase, 11.1, 10.6-11.6
(10.7, 10.1-11.2). The San Josecito specimens average larger than the
series of Recent specimens in all of these measurements, especially
breadth of braincase, but there is considerable overlap in each case
and the extremes of greatest length of skull and of least interorbital
constriction do not exceed the extremes in the Recent series.

_Desmodus stocki_, new species

_Holotype._--Cranium, lacking post-incisor dentition on the
left side, zygomatic arches and auditory bullae; Los Angeles