356 niproi'OTAMii)J5. 



"The Wild Pigs of Obbo, Central Africa, live underground; they 

 take possession of the holes made by the Manis ; these they enlarge 

 and form cool and secure retreats." — Baker, ' Albert N'yanza,' ii. 

 p. 66. 



Subsection II. The front part of the jaws dilated ami truncated. The nos- 

 trils on the upper surface of the nose, closed by a valve. Eyes hiyh up 

 on the sides of the head, on a line with the base of the ears. Aquatic. 



Suborder VI. OBESA. 



Face wide, depressed ; eyebrow and orbit higher than the 

 forehead; mouth very wide, large. Cuttiug-teeth of each jaw 

 cyliudi'ical, elongate, projecting, tusk-like. Canines in each 

 jaw ,_very large, obliquely truncated. Limbs weak. Toes 

 4 . 4, nearly of the same length, radiating, all reaching the 

 ground, more or less free. Tail compressed, short. 

 Obesa, Illiyer, Prodr. 1811. 



Fam. 8. HlPPOPOTAMIDiE. 



Hippopotamus, Linn., Illiyer ; Cuvier, Heyne Anim. 

 Ilippopotamidaj, Schinz, Si/sf. Verz. p. 342 ; Owen, Odont. p. 56.3, 



t. 141. f. 4 ; Falconer, Pal. Mem. ii. pp. 405, 406. 

 Hippopotamina, G}-ay, Ann. Phil. 1825 ; Giebel, Sduycth. p. 214. 



They live in lakes and rivers ; on the coast they go to the sea and 

 play among the surf. — Kirh, P. Z. S. 1864. 



"Essentially a gigantic Hog." — Oiven, Oclont. p. 371. 



The fossil genera Hexcvproctodon, Falconer, Merycopotcmms, Fal- 

 coner, and Chcerotherium, Brandt, appear to belong to this family. 



1. HIPPOPOTAMUS. 



Cutting-teeth four in each jaw; premolars j- . f, molars f . f = 28. 



Hippopotamus, Linn. S. N. 



Hippopotamus, § 1. Tetraproctodon, Giebel, Sduyeth. p. 217. 



Hippopotamus amphibius. (Zeekoe or Eiver-horse.) B.M. 



Hippopotamus amphibius, Z/h«. S. H. p. 101 ; Gray, List Mamin. 

 B. M. ; Gerrard, Cat. Bones B. M. p. 284 ; P. Z. S. 1849, p. 163, 

 1850, p. 160, 1860, p. 195 ; Smith, Illust. Zool. 8. A. t. ; Blainv. 

 Osteoqr. Onqtdiyr.t. 1-7 (var. du Cap,duSt5u(?gal, d'Egypte); Peters, 

 Berlin Mmlatsb. 1854, p. 367. 



