8 



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

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

 exhibited, on being cut into, a dark colour. 



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

 rence 2-^ inches. They were destitute of ccecum and of any corre- 

 sponding valve. Their diameter was nearly uniform throughout their 

 whole length. 



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

 iin inch in diameter. Their secretion was dark-coloured. A minute 

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

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



The liver occupied the situation usual in the Mammalia. Its 

 weight was 3 ounces S-i- drachms. It was tripartite, if the cystic 

 lobe (which 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 substance of the lobes 

 as in Didelphis. The left di'v'ision gave oiF the Spigelian appendix. 

 All the lobes are irregularly 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 oiperitonmtm which attach it to the liver. 

 The ductus communis entered the duodenum 1 inch from the pylorus. 



The pancreas was a broad, flattened, branched gland, with a pro- 

 cess given off at the splenic 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 biliary just at its termination. The spleen 

 was situated sinistrad and dorsad of the stomach : its weight was 64- 

 drachms. Its form was compressed, trihedral and T-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 former coiTesponding to that of the latter. 



The lungs were 34- inches in length ; the right measured I4 and 

 the left H in breadth : their weight was 84 drachms. The right 

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

 was 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, was 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 vena cava: were two superior and one infe- 

 rior. I'he primary branches of the aorta were two, the arteria inno- 

 minata dividing into the right subclavian and the common trunk of 

 the carotids. 



The rings of the trachea were twenty-three in number and incom- 

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

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

 lindrical epiglottis, slighty emarginate at its apex, which extended 



