ON A THERIODONT REPTILE FROM THE CAPE OF GOOD HOPE, 189 
14, Description of FRAGMENTARY INDICATIONS of @ HUGE KIND of 
TueRropont Reprine (Titanosuchus* ferow, Ow.) from BEAUFORT 
West, Gover Tract, Carr or Goop Horr. By Professor OwEn, 
C.B., F.R.S., F.G.8., &. (Read January 8, 1879.) 
[Puiate XI.] 
In a series of fossil remains from the Gough and Karroo tracts in 
South Africa, transmitted by Thomas Bain, Esq., Inspector of Roads, 
Cape of Good Hope, to the British Museum (May 1878), boxes 
nos. 1 and 2 were invoiced as containing ‘‘ Loose bones and fragments 
of bones of a large Saurian, found lying on the surface at Kooda- 
skop, Gough.” 
No bone was entire ; all were broken portions more or less water- 
worn and much weathered. A more seemingly hopeless lot of fossils 
I never before took in hand. 
Indistinct traces of broken teeth, here and there, were the sole 
guide to a nearer recognition of the parts containing them, and sug- 
gested a way of treatment by which a clearer insight of their nature 
might be obtained. Omitting some tentative procedures, I venture 
to submit the following results. 
One fragment had most resemblance to the right premaxillary 
part of an upper crocodilioid jaw. ‘The indications of teeth on the 
worn and broken alveolar surface were too obscure for useful de- 
scription, and a lapidary’s section was accordingly taken across those 
traces at a deeper level. The implanted parts of the following teeth 
were thus brought into view. The foremost (Pl. XI. fig. 3) presented 
a full elliptical section 30 millims, by 18 millims., with pulp-cavity 
(ib. p)16 millims. by 10 millims. As the worn symphysial surface 
of the bone showed a trace of the root of this tooth, I had it ground 
down so as to expose its extent, as shown in fig. 4. A length of the 
basal part of an implanted root, 15 inch, or 40 millims., was thus 
brought into view, gradually diminishing to a solid apex of dentine, 
and seemingly showing the pulp-cavity restricted to the expanded 
part, but it was probably continued into the base of the exserted 
crown, which had been here broken away. 
The second tooth showed an inequilateral triangular shape, with 
rounded angles ; the long diameter, transverse to the alveolar border, 
was 20 millims.; the short diameter across the middle of the tooth 
was 15 millims.; the pulp-cavity was 12 millims. by 5 millims. 
The third tooth presented an oval section 18 millims. by 
12 millims., with a pulp-cavity 12 millims. by 6 millims., the 
long axis being transverse to the course of the alveoli. 
Beyond this were less distinct traces of two other and smaller 
incisors, though the latter inference is affected by the section cross- 
ing nearer the end of the root. 
* Titan and souchos, Egyptian name of Crocodile. 
