Am. Jour. Sci., Vol. XII, 1901 



Plate IV. 



Explanation of Plate IV. 



Under view of the skull of Dromocyon xorax Marsh ; one-half natural size. 

 (Type.) 



apf, anterior palatine foramen; ppf, posterior palatine foramen; mt, mas- 

 seteric tubercle ; as, alisphenoid canal ; fo, foramen ovale ; flm, foramen 

 lacerum medius ; gf, glenoid fossa; earn, external auditory meatus ; m, 

 mastoid ; pp, paroccipital process ; flp, foramen lacerum posterius ; oe, 

 occipital condyle ; cf, condyloid foramen ; ty, tympanic ; frm , foramen 

 rotundum ; sf, sphenoidal fissure ; op, optic foramen. 



