HIPPOPOTAMUS 451 
although not so great as formerly, when they were employed for 
artificial teeth. 
Distribution—Formerly this animal frequented most of the rivers of 
Africa south of the Sahara, but it has long since been exterminated 
from the lower reaches of the Nile, and is daily becoming scarcer 
in the South African rivers. In the Zambesi, where it is less easily 
attacked than in the smaller rivers of Mashonaland, it is still 
abundant, as it also is in the Chobi and neighbouring rivers, as 
well as in Lake Ngami; and even in the lower reaches of the 
Orange River a few are still to be met with. North of the 
Zambesi these animals occur in great numbers. 
In Liberia and adjacent parts of the West Coast occurs the much 
smaller pigmy hippopotamus (7. Zderdens7s), an animal measuring only 
some 6 feet in length, and possessing more the habits of a pig. It 
also differs from the typical species by having, as a rule, only one 
(instead of two) pair of incisor teeth between the tusks. 
Lower Curved Tusks, or Canines. 
Pen et eone oat: Circumference. Locality. Owner. 
1644 74 EE. Africa -. ; 2 Je Jackson. 
2544 63 B.E. Africa . Dr. G. A. Macdonald. 
2-51 9 S.E. Africa . J. Lamont. 
414 8} Do. f . Hon. Walter Rothschild. 
"41 8 Tana River, East Africa J. Benett Stanford. 
3_38 as Nyasaland . : . Major P. W. Forbes. 
$374 84 Shiré River : ; Capt. A. Ty Aunt, BN. 
33 9s N.W. Rhodesia . esi Gy North 
32 93 Lualaba, Central Africa S. L. Hinde. 
1? 62 B.C. Africa : . F. W. Bowman. 
317 102 ? Sir Clement Hill. 
12 9h ? Sir Edmund G. Loder, Bart. 
31; 9 ? E. L. Fletcher. 
31 fe) N.E. Rhodesia . . G.M. E. Leyer. 
302 94 Abyssinia . ; . D. P. MacGillivray. 
303 72 Sierra Leone ; - Major G. S. M‘Laughlin. 
—304 8 Lower Zambesi_ . . H. M. von Archer. 
30 9 Shiré River . Surgeon J. Dowson, R.N. 
30 9 Zambesia_. : . E. W. Tompson. 
30 9 British Central Africa. R. M. Irwin. 
—29} see N. Nigeria - . Capt. C. F. Watson. 
28? 8] Gold Coast : = JE Elobbs: 
Py gs N. Nigeria ; aah. ib. ohaito: 
— Owner's measurements. 1 Protruding from jaw. 2 Malformed. 
% Malformed and protruding from jaw. 4 Protruding from gum. 
