MAMMALIA. 13 



men in England. The complete extinction before historic Pier-case 3. 

 times of so widely-spread an animal is very remarkable. 

 Hoplophoneus, of which skulls are exhibited, is an allied 



Pig. 4. — Diagram of head of the " Sabre-toothed Tiger " (Machserodus 

 neogssus), from the Pampa Formation of Buenos Aires, Argentine 

 Bepublic, showing the widely open mouth ; one-eighth nat. size. 

 (After W. D. Matthew.) 



genus from the Oligocene White Eiver Formation of North 

 America. Eusmilus, represented by jaws, is one of the small 

 ancestral forms from the Oligocene Phosphorites of southern 

 France. 



In the exhibition of remains of Hysenidse (Pier-case 3) Pier-case 8. 

 the largest space is occupied by the European cave-hyaena, 

 which seems to have been essentially identical with the 

 existing spotted hysena {Hysena orocuta) of Africa. Indi- 

 viduals in all stages of growth are represented by the jaws 

 and teeth from the English caverns, and by other fragments 

 from river deposits and the Norfolk Forest Bed. Other true 

 hysenas are known by fossils from the Lower Pliocene of 

 Greece, Samos, Persia, and India ; but there are no traces 

 of the family in America. Ictitherium, from the Lower Table-case 

 Pliocene of Greece, Samos, Persia, and India, is known not 2. 



only by fine skulls, of which there are some in Table-case 2, 

 but also by the greater part of the skeleton. It is an 

 ancestral genus, connecting the Hyaenidae with the 

 Viverridse. 



The Viverridse, or civets, mongooses, and their allies, 



