BY C. W. DE VIS, M.A. 43 
from the late to the present, yet it is one which by testi- 
mony, reliable as far as it goes, seems to be raised to the 
higher rank of presumption. That testimony is now 
submitted for examination. 
It consists primarily of a quinque-tuberculate tooth of 
bunodont type, composed of four sub-conical cusps 
separated by crucial sinuses and supplemented by a post- 
basal talon of similar form. Its general shape is that of 
the last lower molar of the Peccary (D. torquatus), less 
nearly that of the last upper molar of the native pig of New 
Guinea (S. papuensis) were its talon brought into the 
central line of the tooth. It measures 35 mm. longitudinally 
and 25 mm. transversely, representing, other things being 
equal, an animal of the size of a large boar. But its imme- 
diate kinship was not with the genus Sus.—the multitu- 
dinous tubercles bristling on the surface of the tooth in the 
true pigs and the rising convolutions of enamel forming its 
complex cusps are entirely absent from the fossil. In the 
smoothness of the surface and simplicity of the structure of 
its cusps it even exceeds its homologue in Dicotyles and 
further departs from it in the comparative regularity of 
their transverse arrangement. 
The outer anterior cusp is, unhappily, broken away. 
The inner is the largest of those remaining. Its fore and 
aft measurement is nearly one-half of the whole 
length of the tooth, its apex being near the hinder 
end; its two anterior sides, which meet in a low central 
ridge descending from the apex, slope gently forwards— 
that on the outer side is sub-concave, the inner one convex. 
The apex is worn from within downwards and outwards 
into a triangle of enamel enclosing a similar field of 
dentine. The hinder pair of cusps are about equal in size, 
and are placed opposite to each other in the transverse 
line; the outer one is conical and has its apex worn from 
without downwards and inwards te an oval patch of 
dentine ; the inner is a little flattened posteriorly, and on 
its outer and fore sides rendered somewhat angular by 
projections linking it feebly with its adjoining cusps—its 
summit shows a surface of abrasion directed inwards and 
backwards, surmounted by a triangle of dentine. The post- 
basal talon is a single sub-pyramidal eminence less elevated 
