Norwich Castle Museum. 149 
of the two orders SIRENIA and CETACEA, both of 
which, however, contribute to the Osteological Col- 
lection. In 
Cases XI. and XII. 
begin the important order UNGULATA, which is 
made up of the hoofed animals. Of these we have 
at present a very poor selection. There is a fairly 
good WILD Boar, and a prettily-striped young one. 
The heads of some South African species of Antelope 
will be found in the next corridor, but here we can 
only show one small species of DEER and a little 
Musk Deer, a Syrian Goat (C. 4ircus) and a 
MOouFtLon (Ovis musimon). Of the RODENTIA, or 
gnawing animals, a well-defined order, we have some 
Flying Foxes and numerous species of Squirrels, the 
smallest of which is a pretty little Palm Squirrel 
known as Sczurus palmarum, also the Scandinavian 
LemMinG (Myodes lemmus), which at uncertain 
intervals makes such marvellous migrations, passing 
in a direct line over mountains and through rivers and 
lakes, till they reach the sea, into which the remnant 
of the great army, which started never to return, 
perishes. Another interesting Rodent is the South 
American Coypu (Mvopotamus coypu), one of the 
largest of the order which lives in burrows near the 
water, feeding on aquatic plants. ‘There are also some 
good examples of the Porcupine (Aystrix cristata), 
which is found throughout Southern Europe and North 
and West Africa. ‘There are several species, all of 
similar habits, hiding by day and coming out to feed on 
an entirely vegetable diet, by night. Of course their 
remarkable armature of spines is well known to all. 
The South American Golden Acuti (Dasyprocta 
aguil), a very pretty but destructive animal, is the last 
of the Rodents in the foreign collection. 
