176 , MAMMALIA. 



to which their stomach, divided into several sacs, evidently allies 

 them. It is singular that the aorta of these animals is often found 

 very much enlarged, but at different parts of it, as though they were 

 subject to a kind of aneui-ism. 



Only two species are known, both from South America, which 

 were ascertained by Azzara : Linnaeus confounds them under the 

 name of Sus tajassu. 



Die. torqiiatuSf Cuv. ; Buff, X, iii and iv. (The Patira.) Hair 

 annulated with grey and brown ; a whitish collar, stretching 

 obliquely from the angle of the lower jaw over the shoulder j 

 half the size of the Wild Hog. 



Die. labiatus, Cuv.; the Tagniacati, Taitetou, Tajassou, Sec; 

 larger, brown, and with white lips. 



Here may come a genus now unknown in the living crea- 

 tion, which we have discovered, and named 



Anoplotherium. 



It presents the most singular affinities with the various tribes of 

 the Pachydermata, and approximates in some respects to the 

 order of the Ruminantia. Six incisors to each jaw, four canini 

 almost like the incisors, and not projecting beyond them, and 

 seven molars throughout, form a continuous series without any in- 

 tervening space, a disposition of the teeth seen in Man only. The 

 four posterior molars of each side are similar to those of the Rhino- 

 ceros, the Daman, and the Palseotherium ; that is, they are square 

 above, and form double or triple crescents below. Their feet, ter- 

 minated by two great toes, as in the Ruminantia, differ in this the 

 bones of the metatarsus and metacarpus always remain separate, or 

 without being soldered together. The composition of their tarsus 

 is the same as in the Camel. 



The bones of this genus have hitherto only been found in the 

 gypsum quarries near Paris. We have already ascertained five 

 species : one the size of a small Ass, with the low form and 

 long tail of the Otter A. commune, Cuv., to the internal edge 

 of whose fore foot was affixed a small accessary toe : another of 

 the size and light carriage of the Gazelle . medium: a third 

 of the size, and about the proportions of the Hare, with two 

 small accessory toes to the sides of the hind feet, Sec. See 

 Cuv. Rech. Oss. Fos. tom. III. 



The ordinary Pachydermata which have not cloven feet, 

 comprehend, in the first place, three genera, very similar to 



