Measurements.—Measurements of the holotype and average and extreme measurements of 5 adult females from the type locality, including the holotype, are, respectively, as follows: Total length, 85, 88.0 (85-92); length of tail vertebrae, 43, 40.8 (36-45); length of hind foot, 9, 9.4 (8.5-11); height of ear from notch, 12, 12.6 (12-13); length of forearm, 33.8, 33.4 (32.9-33.8); length of tibia, 14.8, 14.6 (14.5-14.8); greatest length of skull, 13.3, 13.1 (12.7-13.3); condylobasal length, 12.6, 12.4 (12.1-12.6); breadth of braincase, 7.0, 6.8 (6.7-7.0); zygomatic breadth, 8.1, 8.0 (7.8-8.2); mastoid breadth, 7.1, 6.9 (6.5-7.1); length maxillary tooth-row, 4.5, 4.5 (4.4-4.6).

Specimens examined.—Those from Texas are in the collection of the United States National Museum, and those from Coahuila are in University of Kansas Museum of Natural History. Total, 21. Texas: Comstock, 1; Del Rio, 2. Coahuila: 2 mi. W Jiménez, 850 ft., 15; 2 mi. S and 3 mi. E San Juan de Sabinas, 1160 ft., 3.