1442 



CLASS MAMMALIA. 



connection between Palhycena and the next group. In the typical 

 or Euhycznine group, as represented by the living Indian Striped 

 Hyaena (H. striata) the premolars form blunt cones admirably 

 adapted for crushing large bones. In this group the upper car- 

 nassial (fig. 1325) has a short third lobe, while the corresponding 



Fig. 1325. — The right upper carnassial tooth of Hy&na striata, from the outer (a) 

 and oral (b) aspects ; from the Suffolk Crag. 



lower tooth still retains its inner cusp and distinct hind talon ; but 

 the first lower premolar and second true molar have totally dis- 

 appeared. Remains referred to the existing species occur in the 

 Suffolk Crag, the caverns of France and the Upper Pliocene or 

 Pleistocene of Italy. H. arver?ie?isis, of the Upper Pliocene of 



Fig. 1326. — Outer view of hinder part of the right ramus of the mandible of Hycena Colvini', 

 from the Pliocene of India. 



France and Italy, seems to be allied to H. brunnea of the Cape ; 

 while H. Perrieri (toflariensis), of the same deposits makes another 

 step towards H. crocuta, having lost the inner cusp to m. 1. The 

 most specialised or Crocutine group (Crocuta) is now represented by 

 the Spotted Hyaena, and is characterised by the long third lobe of 



