251 



jj^^^ 



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

 produced in the form of projecting tusks. Teats pectoral. 



Suborder 7. Proboscidea. Nose produced into a proboscis with 

 a k««d- shaped end. 



Fam. Elephantid.?:. 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 limbs. 

 Fam. SiEENiD^. 



Cutting- teeth chisel-shaped, 

 in both jaws, erect. 



Cutting-teeth, upper ordi- 

 nary, lower shelving. 



Cutting-teeth, upper and 

 lower cyhndrical, exserted. 



Cutting-teeth, upper cylin- 

 diical, tusk-like ; lower 



1. Nasuta or Ta- 



piridae. 



2. Solidungula or 



Equidas. 



3. Laminungulaor 



Hyracidae. 



4. Nasicornia or 

 Ehinocerotidse. 



5. Setigera or 



Suidse, &c. 



6. Obesa or ilip- 



popotamidie. 



7. Proboscidea or 



Elephantidffi. 



Nose proboscis- 

 shaped. 



Nose rovmded, 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 hnger 

 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 jatcs taperin;/ in front. Nostrils terminal: eyes 

 lateral. Ten-estrial auimals. 



Suborder I. NASUTA. 

 Nose produced into a short proboscis, soft at tlie cud. 

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

 subcqual ; canines normal or wanting. Toes 3.3 or 4.4, 

 subequal, radiating, more or less fi'ce, all reaching the ground, 

 with triangular hoofs. Neck short. 



Nasuta, Illiger, Frodr. 1811. 

 TapiriniC, Orai/, Ann. Phil. 1825. 



