390 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. IToLVL 



condyles. They are connected with the otic bullse by a plate of bone, 

 which, with the process, is larger than that of the wolf. In this respect 

 this species differs from all the Truckee and White Eiver species, where 

 the paroccipital process is either in contact with the bulla or little sep- 

 arated from it. The mandibular rami are moderately robust, and the 

 masseteric fossa extends to the line of the posterior border of the first 

 tubercular tooth. The coronoid process is large and obtuse above. 

 The angle is iDrominent. 



Measurements. 



M. 



Length of skull (axial) 196 



Length of superior dental series - 093 



Length, of inferior dental series - 097 



Length of inferior premolars , 049 



Length of inferior sectorial base 019 



Elevation of inferior sectorial from base Oil 



Length of mandibular ramus 148 



Elevation of ditto at coronoid 060 



Elevation of ditto at sectorial 030 



Length of axis with odontoid 044 



Length of remaining cervicals 119 



Length of lumbar vertebra 028 



Elevation of lumbar vertebra 045 



vertical 013 



Diameters centrum do. ^^^^^g^^^g^ 021 



Depth of pelvis at obturator foramen, obliquely 049 



Diameter of acetabulum 019 



Length of third metacarpal - 048 



Length of astragalus 028 



Length of fifth metatarsal 062 



The fine specimen which is above described was discovered by my 

 assistant, J. C. Isaac, in a sandy bed of the Ticholeptus division of the 

 Loup Fork formation. This, as I have elsewhere shown, is lower in 

 position than the True Loup Fork. The locality is near Laramie Peak, 

 Wyoming Territory. 



