LOWER MAMMAL GALLERY. 
59 
The Lower Mammalian Gallery is entered from the western Lower 
corridor of the Central Hall. Tog-ether with the adjacent 
° . . \ Mamma 
corridor it contains the greater part of the exhibited series of 
recent Mammals, with the exception of the Cetacea and Probos- 
cidea ; the orders Primates, Chiroptera, and Insectivora being in 
the upper gallery. As a special guide is devoted to these two 
galleries, a very brief notice will serve on this occasion. Both 
stuffed specimens and skulls and skeletons are exhibited side by 
side, although the former constitute by far the greater portion of 
the series. A few remains of extinct types, or plaster repro- 
duction of the same, are intercalated here and there. And 
photographs of living animals are hung on the walls, where 
Fig. 88. — Duck-bill ok Duck-mole (Ornithorliyndni^ anatinus). 
will also be found some instructive series showing the modi- 
fications assumed by the teeth of certain groups. Wherever 
! possible, the horns and antlers of the ruminants, as well as 
I the horns of the rhinoceroses, are placed in juxtaposition to 
the animals to which they respectively belong. 
The series commences on the right side of the gallery with 
the lowest forms. Down the middle is a row of large mammals, 
comprising various Deer, Seals, and Pthinoceroses. On the right 
of the entrance a small case contains the Duck-bill (fig. 33) and 
Iv'hidnas of Australia and New Guinea, which lay esgs, and 
:irc the lowest of all living mammals. In the adjacent bay are 
ilie Marsupials, such as the Kangaroos, Plialangers, Wombats, 
