Ward—The Variations in Proportions in Bats. 653 
many such descriptions read as though the authors actually con¬ 
sidered them of prime importance. All hunters are aware that 
they frequently can recognize individual wild animals from 
others of their kind. I am inclined to believe, from observa¬ 
tion, that these distinctive characters are frequently those of 
proportion; that the long legged animal that we learn to know 
appears long of limb not because he is less fat than others but 
because his legs are actually disproportionally long so that their 
peculiarity strikes the eye, and that individualities of form are 
probably more common than are generally recognized. 
Mensuration is assuredly of great value in mammalogy, but 
it is well to keep in mind that there is a considerable and un¬ 
known amount of individual variation afTecting each species. 
As a matter of record of localities I would mention the fol¬ 
lowing other species of bats, mostly collected by myself or my 
assistant in Mexico and contained in the museum of the Comi- 
sion Geografico-Exploradora at T'aoubaya where they were de¬ 
termined by myself: 
Lasiurus cinereus (Beauvois), 
Jalapa, Veracruz. 
Corynorhinus macrotis (Le Conte), 
Las Vigas, Veracruz; Ixtapalapa and El Convento in 
“Diserto,” Federal District. 
. Saccopteryx plicata (Peters), 
Six specimens from a hole in a Penon on the Oerro de 
Jojutla, District of Juarez, Morelos, and one from un¬ 
der the roof of a church at Cuernavaca, Morelos. 
Nyctinomops depressns (Ward), 
Tacubaya, Federal District. 
Octopterus hulleri (H. Allen), 
“Southern Puebla.” 
Micronycteris megalotis (Gray), 
Cueva de la Leona, District of Juarez, Morelos and 
Cuesta de Don Lino near Jalapa, Veracruz. 
Ilemiderma hrevicaudum (Wied), 
Ouesta de Don Lino near Jalapa, Veracruz. 
Leptonycteris nivalis (Saussure), 
“Veracruz.” 
