AtLeN.— Bats of the Genus Corynorhinus. 
EXPLANATION OF THE PLATE. 
Fig. 1— Corynorhinus megalotis townsendii. 150273 Biol. Surv., upper in- 
cisors and canine of right side, with supernumerary incisor (73). 
Fig. 2.— C. m. townsendii. 204437 Biol. Surv. from McKenzie Bridge, 
Oregon, showing normal incisors (2', 7?) and canine. 
Fig. 3— C. m. mexicanus. 98285 Biol. Surv. Type, to show bicuspidate 
first incisor and weak canine. 
Fig. 4.— Ear of C. megalotis. 170933 Biol. Surv. from Sun City, Kansas. 
Fig. 5.— Ear of C. phyllotis. 5943 M. C. Z. Type, from San Luis Potosi, 
Mexico. 
Fig. 6.— Skull outline of C. phyllotis. 5943 M.C. Z. Type, from above. 
Fig. 7.— Skull outline of C. megalotis mexicanus. 98285 Biol. Surv. Type. 
