Howard J. Stains

“ Remarks.—Leptonycteris nivalis longala inhabits the northeastern end of the Mexican Plateau. Bats from Brewster County, Texas, referred to longala, average slightly larger in all measurements taken than do specimens from southern Coahuila. Specimens from Cerro Potosí, Municipio de Galeana, Nuevo León, also are referred to longala on the basis of the length of their third fingers. [Pg 356] Like the specimens from Texas, these bats possess longer forearms, on the average, than do bats from Coahuila. ”

“ Comparisons.—From Leptonycteris nivalis nivalis (specimens from Veracruz, Oaxaca, Distrito Federal, Hidalgo, Jalisco, and Sonora) , L. n. longala differs as follows: color paler, more whitish and less brownish; third finger longer (longala from Coahuila averaging 111.3 mm.; nivalis from Sonora averaging 91.0, from Jalisco 96.4, from Hidalgo 98.0, from Veracruz 100.0, from Distrito Federal 100.2, and from Oaxaca 98.6) ”

“ Colin C. Sanborn of the Chicago Natural History Museum for loan of comparative material. I am grateful also to the Kansas University Endowment Association and National Science Foundation for support of field work, and to Dr. ”