54 
LOWER MAMMAL GALLERY. 
[Cases In the FhoddcVy or True Seals, the adaptation for an aquatic 
HO, Sl,& jjfg reached its highest development. They are without 
external ears, the soles of their feet are covered with hair, and 
the coat has no woolly under-fur, consisting merely of long stiff 
hairs lying closely against the skin so that their fur is of value 
only for the manufacture of coarse wearing apparel. 
The family contains eight or ten genera, separated chiefly by 
the form of their teeth and the varying development of the 
toes, which in some are all of about the same length, while in 
others the first and fifth toes are much elongated beyond the 
rest, in order to support the web. 
Fig-. .31. 
Male Elepbant-Seal {Morumja leonina). 
The most noteworthy of the Northern Fhocidir exhibited 
are : — the Hooded Seal, Ci/stophora cristata ( 651 ), from 
Greenland, the male of which has a peculiar bag of skin on its 
muzzle, capable of being inflated with air when the animal i& 
excited ; the Common Seal of the English coast, Fhoca vitulina 
( 662 , fig. 3 0), exhibited in the British Saloon, at the end of the 
Bird Gallery; the Greenland or Harp-Seal, ib (661 
the rare Banded Seal, F. eqnestris ( 663 ), of the North Pacific; 
and the Grey Seal, Haliclicerus gry pus ( 654 ). 
In one of the cases are shown the Seals of the Southern Seas,, 
most of which were collected by the ^ Hiscovery,’ although 
others are the gift of Sir George Newnes. They include the- 
