104. Mr. E. D. Cope on the 



Gray states that these dogs are fed largely on vegetable food 

 in Japan, and have an artificial existence in various respects. 

 They are, according to Dr. Ruschenberger, uncommon and 

 expensive in Japan. 



I have been unable to discover that any name, whether 

 varietal or specific, has been given to this dog. 



Icticyon, Lund. 



One existing and one extinct species have been found in 

 Brazil — the latter in the caves. I describe a species from 

 Oregon which I cannot separate from them generically. 



Icticyon crassivultuSj sp. nov. 



This dog is so far represented by a skull which, while it 

 lacks the parietal and occipital regions, is otherwise nearly 

 complete, having both mandibular rami. The dental formula 

 is, I. § ; C. \ ; Pm. f ; M. \. The single superior tubercular 

 molar is similar in general to that of other Canidee. The 

 inferior sectorial has an internal cusp and posterior heel, the 

 latter with a low cutting-edge on one side. Inferior tuber- 

 cular well developed. 



The dental formula of this animal is that of Icticyon , Lund, 

 of which a species has been found in the cave-deposit of 

 Brazil, and another still lives in that region. 



Char. sj)ec. The snout is short and robust ; and the profile 

 from the parietal region is straight and descending. The 

 premaxillary border projects but little beyond the line of the 

 extremity of the nasal bones. The muzzle is slightly con- 

 tracted in front of the orbit and above the fundus of the 

 canine alveoli. The latter cause a swelling on the side. The 

 infraorbital region is somewhat cracked, but appears to have 

 been nearly flat mesially ; laterally it descends steeply to the 

 supraorbital border. The orbit is not large ; and the zygo- 

 matic fossa is short. The nasal bones are narrowed posteri- 

 orly, a little contracted mesially, and expanded anteriorly, 

 their lateral portions being produced along the premaxillaries. 

 Their combined nasal border is concave, and is without the 

 notches of some forms. The foramen infraorbitale exterius is 

 of medium size, and issues above the interval between the 

 sectorial tooth and the one in advance of it. The mandibular 

 ramus is quite robust, and its inferior border is gently convex. 

 The masseteric fossa is bounded by elevated borders, especially 

 inferiorly; and the angular hook is prominent and robust. 

 The condyle is situated on the horizontal line of the tubercular 

 molar, or a little above the others, and has a wide transverse 



