22 BULLETIN 171, U.MTED .STATES NATIONAL MUSP^UM 



Figure l.—Canis urmbruMeri Gidley, right ramus of mandibie, paratype (U.S.X.M. no. 7C61): a, Lateral 

 view, two-thirds natural size; ft, occlusal view, natural size. Cumberland Cave Pleistocene, Maryland. 



Figure s. 



-Canis armbrusteri Gidiey: Left ramus of mandible (U.S.N.M. no. 11881), lateral view. 

 Two-thirds natural size. Cumberland Cave Pleistocene, Maryland. 



Figure 9.—Cnnig annbrusleri Gidley: Right ramus of mandible (U.S.N.M. no. 11882), lateral view. 

 One-half natural size. Cumberland Cave Pleistocene, Maryland. 



