188 
being narrow, of a dark colour, loose, and evidently on the point of 
being shed.” 
The keeper found this tooth some months after. At the time of 
death there were four molars; the upper'two having eleven plates 
each, the lower, twelve. No rudimentary teeth were perceptible ex- 
ternally, but small apertures existed for their advent. 
8. On some PoINTS RELATING TO THE ANATOMY OF THE 
TAsMANIAN Wo.F (THYLACINUS) AND OF THE CAPE Hunt- 
1NG Doe (Lycaon pictus). By Epwarps Crisp, M.D. 
Before I proceed to the immediate object of my communication, I 
may be excused, I trust, for alluding to a mode of investigation that 
T have followed in all my dissections, viz. that of taking accurate 
weights and measures of the body of the animal and of the viscera, 
with drawings the size of life of the organs examined. 
By this method, combined with the use of the microscope, I be- 
lieve hereafter that much light will be thrown upon many physio- 
logical subjects which are at present but imperfectly understood. 
It is, however, only by comparison on a large scale that any import- 
ant benefit is likely to result. 
TuyLAcinus CyNOCEPHALUS. 
This animal (a male) died at the Society’s Gardens, where it had 
been for several years. I believe it is the only one that has been 
dissected in this country. It weighed 33 lbs., and measured from 
nose to root of tail 2 feet 9} inches. The tail, 15 inches. The penis 
curved backwards. The cause of its death was unapparent. It was 
excessively fat ; the fat on its abdomen and other parts weighing 
probably four or five pounds. The heart, long and pointed ; weight, 
4 oz. 60 grs. The trachea of moderate size; the connecting mem- 
brane at the posterior part very thick. The lungs trilobed ; weight, 
4 oz. 304 grs. The liver composed of five main lobes ; weight, 14 oz. 
The spleen long, thin and narrow, with a lateral tongue-like process 
(as in nearly all of the Marsupiata) } from the upper end. Length 
of spleen, 103 inches; its average breadth about an inch; it was 
seated along the left side of the stomach, imbedded in fat. The 
kidney of a rounded form; weight, 1 oz. 167 grs. The alimentary 
canal measured only 6 feet 6 inches. The stomach of moderate size ; 
its coats very thick, and capable of great distension. The ruge of 
the lining membrane large and prominent ; the pyloric valve strong 
and muscular; the length of empty stomach 8 inches; the duode- 
num at its commencement studded with numerous bead-like pro- 
cesses, which emerged into a portion of mucous membrane thickly 
studded with villi about 3 lines in length, as represented in fig. 1. 
These were continued for nearly four feet ; they resemble much the 
rumen of the sheep or rein-deer. In the small intestines of the Rhi- 
noceros, ‘fig. 2, the villi are about 6 or 8 lines in length, but far less 
numerous. 
