178 Zoological Society :^- 



excessively fat ; the fat on its abdomen and other parts weighing 

 probably four or five pounds. The heart, long and pointed ; weight, 

 4 oz. CO 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, 10|^ inches; its average breadth about an inch; it was 

 seated .ilong the left side of the stomach, imbedded in fat. The 

 kidney of a rounded form; weight, 1 oz. 107 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 rugse 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. 



The caecum absent. The large intestine measured 12 inches ; the 

 coats thick and the lining membrane plicated longitudinally. The 

 relative weight of the viscera as compared with that of the body is 

 about as follows : — Liver, gJy ; spleen, 3^^^ ; kidney, ^{-2 '•> heart, y^y ; 

 lungs, YTT ; the blood-corpuscles about j-gV ^^ *^ \\ic\i in diameter. 



Fig.l. Fig. 2. ,,;„; 



I have examined the two skeletons of the Thylucimis at the Mu- 

 seum of the College of Surgeons, a description of which is given by 

 Professor Owen in the new Osteological Catalogue (p. 347). The 

 teeth, 46 in number ; incisors, 8 above and G below ; canines, 4 ; 

 molars, 28, 14 in each jaw = 46. Vertebrae : cervical, 7; dorsal, 13; 

 lumbar, 5; sacral, 2; caudal, 23 ; ribs, 13. 



The time does not allow me to dwell on many points of great in- 

 terest respecting the anatomy of this animal, but a comparison of the 

 structure of the Thylacinns with the Dog I am about to describe will 

 not be unprofitable. 



Cape Hunting Dog (Lycaon pictus. S. Africa). 

 This animal died at the Society's Gardens, where it remained for 

 some months previous to its death, a few days before which period 



