426 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Apr. 13, 
species of larger size. The Chinese Rhinoceros, in this respect, 
seems to have agreed with the two-horned kind of Sumatra, but to 
have had a different pattern of upper molar. 
The lower molars from the cave of Chung-king-foo, of which 
there are parts of four, sufficiently exemplify the generic modi- 
fication of Rhinoceros, but are too few and too much worn and 
mutilated for worthy evidence of specific distinction. I believe 
myself justified, from the characters of the upper molars, and the 
results of the comparisons above detailed, in indicating the Chinese 
Rhinoceros as fh. sinensis, Ow. The enamel is, in most parts, 
smooth and not thick; it retains the natural colour; and the dentine, 
of chalky whiteness, is absorbent from loss of the soluble constituent, 
and not otherwise altered. 
The main characteristics of the upper molars of this extinct species 
are evenness of depth of the main valley, its encroaching promon- 
tory thick and simple, unusually good indications on the outer 
enamel-wall of the two lobes (a, 6) composing the thick continuous 
outer tract of dentine which is the characteristic of the present 
genus of Perissodactyle. 
Considering remoteness of position, and the evidence pointing to 
still greater remoteness in geological time between the present and 
other known fossil Asiatic Rhinoceroses, I should have been more 
surprised to find identity of species, than to detect the indications 
of diversity which have above been noted. 
TAPIRUS SINENSIS, Ow. 
To the genus of Tapir are referable three molars of the upper, 
and four of the lower jaw. They resemble the other fossils from 
the Chinese cavern in colour and chemical composition ; the dentine 
and portions of jawbone adherent to the fangs of the teeth are blanched 
and absorbent from loss of animal matter, but not mineralized. 
Of the existing species of Tapirus these teeth most resemble those 
of the Sumatran kind (7. malayanus, Ratfiles, 7’. indicus, Cuv.). In 
the upper molar series there are modifications of grinding-surface 
which help to define the position in that series of such detached 
teeth. _ 
The tooth, Pl. XXVIII. fig. 8, resembles the third or the fourth pre- 
molar in the degree of equality of the rear (6, d) with the front 
(a, ¢) half of the crown, and in the smaller proportion of the 
antexternal tubercle (7) of the cingulum; it more resembles the 
third premolar in the extension of the cingulum at the rear of the 
crown (7) to the inner end of the base of the postinternal lobe (@), 
such rear portion of the cingulum not being bent up to the apex of 
that. ridge as in the last premolar and in the true molars of Tapirus 
mdicus. 
Compared with the tooth of the Sumatran species, with which 
it is homologous, this penultimate premolar of the Chinese Tapir is 
larger, and has a proportionally greater transverse diameter, or from 
Without inwards; it is still larger than in the European fossil 
species. 
