s 



tilia. The vessels anastomose to form but one senes of arches. llie 

 mesenteric glands were oblong, situated close to the pancreas, and 

 exhibited, on being cnt into, a dark colour. 



The length of the intestines was 5 feet ; their greatest circumfe- 

 rence 2-į- inches. They were destitute of ccecvm and of any corre- 

 sponding valve. Their diameter was nearly uniform throughout their 

 whole length. 



The anai glands, two in number, were of a spherical form, and half 

 nn inch in diameter. ITieir secretion was dark-coloured. A minute 

 duct conveys it from each gland to the verge of the cloacal opening, 

 Avhich is a little prominent, and is surrounded by a strong sphincter. 



The liver occupied the situation usual in the Mainmalia. Its 

 Aveight was 3 ounces 84- drachms. It \vas tripartite, if the cystic 

 lobe (-nhich is deeply cleft) be considered as one division. The 

 right division was partially cleft into three lobes : the cystic di- 

 vision was deeply cleft, with the gall-bladder loosely attached at 

 the bottom of the fissure, not perforating the substan.ce of the lobes 

 as in Didelphis. Ihe left di'vision gavę off the Spigelian appendir. 

 AU the lobes are inegularly notched. The abdominal vena cava per- 

 forated the liver. The gall-bladder was of a pyriform figure, pendent 

 at its apex to two small folds oi peritoneeum which attach it to the liver. 

 The duetus commvnis entered the duodenum 1 inch from the pyloms. 



The pancreas Avas a broad, flattened, branched gland, Avith a pro- 

 cess given off at the sj)lenic end from the main body, so as to pro- 

 duce, in a transverse section, the figure of the letter T. The pan- 

 creatic duct joined the biliarj' just at its termination. The spleen 

 was situated sinistrad and dorsad of the stomach : its weight was C4 

 drachms. Its form \vas compressed, trihedral andT-shaped, as in the 

 Kangaroo, but its lesser process was not so long as in that animal. 

 Mr. Owen considers this form as indicative of a relation, hitherto un- 

 suspected, between the spleen and the pancreas, the small process of 

 the forraer coiTCsponding to that of the latter. 



The lungs were 3-į- inches in length ; the right measured 1-į and 

 the left ll in breadth : their weight \vas 84 drachms. The right 

 consisted of four lobes ; the left but of one lobe. The azygos lobe 

 \vas connected to the right lung by the large branches of blood- and 

 air-vessels only, and not by continuity of substance. 



The heart, measuring 1 inch and 10 lines in length and 1 inch 

 and 3 lines in breadth, and weighing 94- drachms, \vas situated near 

 the middle of the chest. Its form was oblong, pointed at the apex. 

 The right auricle rose high above the left. Both auricles had smooth 

 short appendices. The ven(e cava: were two superior and one infe- 

 rior. The primary branches of the aorta were two, the arteria inno- 

 minata dividing into the right subclavian and tlie common trunk of 

 the carotids. 



The rings of the trachea were t'vventy-three in number and incora- 

 plete behind. The first of them rose convexly into the space beIow 

 the cricoid cartilage. The larynx was protected by a large semicy- 

 llndrical epiglottls, slighty emarginate at its apex, \vhich extended 



