430 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Apr. 13, 
and less conspicuously along the outside of the base of the lobe a. 
The middle of the outer concavity of this lobe shows a narrow vertical 
ridge of the enamel, ending a little behind the apex of the lobe. 
In the anterior view of the crown (fig. 9) the convexity of the 
prominence (0) in the vertical direction is shown, and the degree of 
inflection of the outer surface inward to form the apex (a’) of the 
V-shaped summit of the antexternal lobe ; the cone (m) simulates in 
this view an antinternal lobe. The absence of this lobe is character- 
istic of Chalicotherium; I do not regard the part of the cingulum (7) 
as its rudiment, because it is present in the premolars as well as in 
the molars, and it coexists with the true representative of the antin- 
ternal lobe (c) in both Paloplotherium and Anoplotherium (fig. 11, r). 
The posterior view of the crown (Pl. XXIX. fig. 8.),in like manner, 
gives the vertical curve of the dividing bulge, and shows the prox- 
imity to the inner side of the tooth of the apex of the lobe 6; the 
second or postinternal lobe forms the cone d. The inner side of the 
tooth (7d. fig. 10), formed by the cone m, and the postinternal lobe 
(d), with the uniting cingulum (7), is much narrower than the outer 
side; and the inner division shows consequently a confluence of its 
roots (¢). This molar was implanted by two thick and strong outer 
roots, and by one larger inner root, composed, as indicated by the 
inner and outer longitudinal impressions, of two confluent fangs. 
With the aid of the pocket-lens the fine transverse striz of the 
enamel appear, and best beyond the cingulum. The radical cement 
is rough and thick. The dentine is blanched, not petrified, but has 
lost gelatine, and sticks like chalk to the tongue, as in the other 
cave-fossils. 
The reader comparing fig. 7, Pl. XXIX., with m 3, fig. 36, pl. 80, 
of the ‘Fauna Antiqua Sivalensis,’ fol., or with figs. 5 and 6, a, pl. 
7, of Kaup’s ‘Ossemens Fossiles de Darmstadt, oblong fol., and 
with the excellent figure of the upper molar, apparently m 3 of 
Chalicotherium Goldfussi, in Bronn’s ‘ Lethzea Geognostica,’ atlas, 
fol. taf. xlvi. fig 2, a, may appreciate the grounds for indicating the 
Chinese Anoplotherioid as Chalicothervum sinense. 
The last molar of Chalicotherium sinense is less than that of Ch. 
Goldfussi, Kp., and two lines larger in all the dimensions given at 
p. 431, than is that tooth in Ch. sivalense, Fr. Compared with this, 
the outer bulge (0) of the antexternal lobe is thicker, more convex 
vertically, and more produced outwardly. The outer concavity of 
the postexternal lobe (f’), which in m 3 becomes almost backward 
in aspect, is less deep in Ch. sinense; it is angularly indented in 
Ch. sivalense. The basal ridge (7) between the two inner lobes and 
that anterior to the base of the mammilloid lobe (m), are relatively 
less developed in Ch. sinense. The Anoplotherioid character of this 
lobe, as a large, rather low cone, is well marked. Its summit and 
the angular margin of the antexternal lobe are worn to the dentine, 
the exposed tract in the latter being from one to two lines in breadth. 
The enamel of the anterior part of the ridge of the postexternal and 
postinternal lobes is abraded, and the dentine beneath, at the fore 
part of these lobes, is partially exposed. The anterior part of the 
