The premolar is wide, and shows the character of a pounding 
tooth, upon which the genus was founded by Prof. Owen. The true 
molars have their enamel plates raised into vertical folds. The 
greatest width across the palate is 30 M.M. or 51 M.M. if made to 
include the teeth themselves. Turned upside down, with a vertical 
rod against the incisor teeth, the distance to the palatal vacuities of 
the skull is 60 M.M., the measurement being carried 7 M.M. out of 
the central line so as to embrace the most anterior part of the curve 
in either maxillary. The nasals, which are slightly imperfect in 
length, are 47 M.M. long, and 37 M.M. wide. The frontals are 
centrally depressed, with a tendency to form a slight ridge over the 
orbit, their greatest width being 64 M.M. The jaw shows the 
crowns of three molar teeth, two of which are in advance of the 
coronoid process. At the foremost of these teeth the jaw is smashed 
into two pieces, and was thus broken prior to its inclusion into the 
stratum in which it was found. Owing to this, and other mutila¬ 
tions, an accurate measurement of the jaw is impossible, but it was 
certainly 150 M.M. long. Part of the left jaw is still ankylosed to 
its fellow at the symphysis, the fracture being in this case also, an 
old one. The smashing of the anterior portions of the jaws reveals 
sections of the right premolar, and the incisor tusk. The former 
has a sectional length of 16 M.M., which is 7 M.M. in excess of that 
in the superior maxillary, owing to which the diastema is reduced to 
16 M.M. The exposed section of the tusk shows it to have been 
12 M.M. by 9 M.M. in diameter. 
CLASSIFICATION. 
As reconstructed by Lydekker (Cat. Foss. Mamm., Brit. Mus., 
Vol. v., Page 233), the genus “ Procoptodon ” embraces three 
species and four synonyms. The three animals thus dealt with 
decreased progressively in size, the smallest being without enamel 
folds upon the teeth. Everything considered, the present specimen 
appears to agree best with the middle-sized animal, “ Procoptodon 
Kapha,” nothing that 1 can detect suggesting the need for a new 
species, particularly as it is admitted that great variation in size 
obtained among these ancient animals. Provisionally therefore, 
and without insisting too strongly upon the specific determination, 
I have listed the fossil as “ Procoptodon Rapha” (Owen). 
H. II. SCOTT, 
Curator. 
Launceston Museum, 
November 6th, 1906. 
