PACHYDERMATA. 157 
or without being soldered together as a cannon bone. 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—A. 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, &c. 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 each other in their grinders, 
having seven upper ones on each side, with a square crown and various 
salient lines, and seven lower ones, the crown of which forms a double 
crescent, and the last of all a triple one; but their incisors vary. 
Rurnoceros, Lin. 
- The species of this genus, in this particular, even vary among themselves. 
They are large animals; each foot is divided into three toes, and the bones 
of the nose, which are very thick, and moulded into a sort of arch, sup- 
port a solid horn which adheres to the skin, and is composed of ‘a fibrous 
and horny substance, resembling agglutinated hairs. They are naturally 
stupid and ferocious, frequent moist places, and feed on herbs and branches 
of trees. Their stomach is simple, intestines very long, and the cecum 
extremely large. 
Rh. indicus, Cuv.; Buff. XI. vii. (The Rhinoceros of India.) 
Has, in addition to its twenty-eight grinders, two strong incisors in 
each jaw, two other small ones between the lower, and two still 
smaller again outside of the upper ones. It has but one horn, and 
the skin is remarkable for the deep folds into which it is thrown be- 
hind and across the shoulders, and before and across the thighs. It 
inhabits the East Indies, and chiefly beyond the Ganges. 
Rh. javanus, Cuv.; Fr. Cuv. Mammif. (The Rhinoceros of 
Java.) With the large incisors and single horn of the preceding, 
has not so many folds in the skin, though one of them on the neck is 
larger; but what is most remarkable, is, that the whole skin is 
covered with small compact angular tubercles. It has hitherto been 
found in Java only. 
Rh. sumatrensis, Cuv.; Bell. Philos. Trans. 1793; F. Cuv. 
Mammif. (The Rhinoceros of Sumatra.) The same four great 
incisors as the preceding, but there aré scarcely any folds of the skin, 
which moreover is hairy, it has a second horn behind the common one. 
Rh. africanus, Cuy.; Buff, Supp. VI. vi. (The Rhinoceros of 
Africa.) Furnished with two horns, like the preceding; has no fold 
of the skin, nor any incisor teeth, its molars occupying nearly the 
whole length of the jaw. This deficiency of incisors might warrant 
its separation from its congeners. 
