1434 



CLASS MAMMALIA. 



reduced to - ; while in the latter the upper carnassial has three 



lobes like Hycenarctus, the number of teeth according to Professor 

 Cope being the same as in Cam's, and the humerus having no fora- 

 men. More nearly allied to the Hycenarctus group is Cephalogale, 



Fig. 1315. — Lateral and upper view of one-half of the cranium of Enhydrocyon stenrcepJialus ; 

 from the Miocene of North America. One-half natural size. (After Cope.) 



in which the two upper true molars (fig. 13 16) become more or 

 less triangular, but the carnassial in both jaws (figs. 131 6, 1317) 

 is comparatively short, with low cusps. This genus, according to 

 Dr Schlosser's emendation, is comparatively abundant in the Upper 



Eocene and Lower Miocene of the 

 Continent ; many of the species hav- 

 ing been included by Dr Filhol in 

 Cy?iodictis. Extremely near to those 

 species of Hycenarctus in which the 

 upper true molars are triangular is the 

 gigantic Dinocyon from the Middle 

 Miocene of Europe, in which the 

 above-mentioned teeth become per- 

 fectly triangular like those of Cam's; 

 and we may here mention Brachycyon 

 from the Upper Eocene of France. The widely-spread genus 

 Amphicyon (in which Pseudamphicyon of Dr Schlosser may be in 

 part included) occurs in Europe from the Upper Eocene to the 



Fig. 1316. — The last four left upper 

 teeth oiCephalogale Gryei ; from the 

 Upper Eocene of France. 



