56 
FOSSIL MAMMAL GALLERY. 
group to which it belonged became extinct in the Miocene 
period, without leaving any successors. 
Beyond this is a skeleton (fig. 26) of a recently extinct and 
interesting animal, the Northern Manati, or Sea- Cow {Bhytina 
gigas), the last known resort of which was Bering Island in the 
North Pacific, where it was completely exterminated towards the 
close of the eighteenth century. In the same case is placed the 
skeleton of a smaller allied form, the Halitherium, from the 
Miocene of South Germany. These, with their existing repre- 
sentatives the Manati and Dugong, belong to the order Sirenia, 
aquatic mammals of fish-like form, presenting considerable 
Fio. 27. — Skull of Sivatherium, from the Lower Pliocene Deposits of the 
Siwalik Hills of India, 
external resemblance to Cetacea (the Whales and Dolphins), 
although differing from the latter in many essential points of 
structure and habit. 
Fo«Bil remains The wall-cases on the south side (right on entering) con- 
ofMan. ^g^-^ remains of Man found under circumstances which may 
justify the ajjpellation of " fossil," in caves or in Pleistocene de- 
posits, associated with the bones of animals either completely 
or locally extinct. Then follow in systematic order the bones 
and teeth of the other Primates, the Carnivora, Ungulata, and 
Sirenia. 
