BELLTJiE. 



251 



one. The upper and tte lower cutting-teeth, when present, 

 produced in the form of projecting tusks. Teats pectoral. 



Suborder 7. Froboscidea. Nose produced into a proboscis with 

 a hand-shaped end. 



Fam. EuEPHANTiDiE. Nose in the form of a proboscis. The 

 upper cutting-teeth produced Hke tusks ; lower ones ab- 

 sent or rudimentary. 



Suborder 8. Sirenea. Nose truncated, with open bald nostrils. 

 Fish-shaped, with a broad horizontal tail and fin-like 

 fore Umbs. 

 Fam. SiEEMTD^. 



Cutting-teeth chisel-shaped, 

 in both jaws, erect. 



Cutting-teeth, upper ordi- 

 nary, lower shelving. 



Cutting-teeth, upper and 

 lower cylindrical, exserted. 



Cutting-teeth, upper cylin- 

 drical, tusk-Uke ; lower 

 none. 



1. Nasuta or Ta- 



piridae. 



2. Solidungula or 



Equidse. 



3. Laminungulaor 



HyracidsB. 



4. Nasicornia or 

 EhinocerotidsB. 



5. Setigera or 



Suidse, &c. 



6. Obesa or Hip- 



popotamidse. 



7. Proboscidea or 



Elephantidae. 



Nose proboscis- 

 shaped. 



Nose rounded, nos- 

 trils open; upper 

 lip prehensile. 



Nose truncated, with 

 a button above, 

 nostrils open. 



Nostrils superior, 

 valvular ; mouth 

 very large. 



Nose produced into 

 a proboscis, with a 

 prehensile finger 

 at tip. 



Section I. ORTHOGNATHA. 



The jaws of the usual shape, the dental edge nearly straight ; the 

 three kinds of teeth of the usual form and shape. Teats abdominal. 



Subsection 1. Skull and jaws tapering in front. Nostrils terminal; eyes 

 lateral. Terrestrial animals. 



Suborder I. NASUTA. 



Nose produced into a short proboscis, soft at the end. 

 Lower jaw narrow in front. Cutting-teeth of each jaw normal, 

 subequal ; canines normal or wanting. Toes 3 . 3 or 4 . 4, 

 subequal, radiating, more or less free, all reaching the ground, 

 with triangular hoofs. Neck short. 



Nasuta, Illiger, Frock. 1811. 

 TapirinsB, Gray, Ann. FUl. 1825. 



