70 
LOWEll MAMMAL GALLERY. 
crescent-shaped lobes, and the stomach is composed o£ four oiv 
rarely, three divisions, from one of which the food is returned 
to the mouth after it has been swallowed, in order to be chewed 
a second time — a process known as ruminating or chewing the- 
cud. 
The Pecora comprise a very large number of closely related 
animals, characterized by their generally lightly-built and 
graceful form, their long ears, large eyes, rudimentary or absent 
outer toes, absence of teeth in the front of the upper jaw, and 
their coin[)licated stomachs, which consist of four compartments- 
Stomacb of a Sheep, cut open to show the internal structure. 
cc, cesophaous, or gullet ; ru, rumen, or paunch ; 7-ef, reticulum, or honey- 
comb ; 2 )s, psalterium, or many plies ; ab, abomasum ; ^^?/, pylorus 
(Ju, duodenum, the commencement of the small intestine. 
A splendid series of skulls and horns of India Pecora, 
bequeathed by Mr. A. 0. Hume, C.B., in 1912, is exhibited 
on the wall at the head of the main staircase. 
The families of Pecora are the following : — The Bovidfv, or 
Hollow-horned Euminants, containing Oxen, Sheep, Goats, 
Antelopes, and Gazelles, are distinguished by the possession of 
true horns, often present in both sexes. 
The specimens of Cattle exhibited at the end of the Lower 
40 to 44.] Gallery and in the Saloon include a pair of the Indian Gaur, i>W 
[Bihos~\ gaurus ( 1029 ), its half-domesticated relative the Gayal 
of Assam and the neighbouring countries, the Bantin, B. 
sondaicns (1027 to 1028 ), the indigenous Ox of the Malay coun- 
tries, the Asiatic Buffalo, B, \^B\ihalus^ Imbalis ( 1043 ), and 
various races of the Buffalo of Africa B. \_Biihahis~\ cafer 
(1037 to 1039 ). 
