Zoological Society. 251 



and a half in breadth, extending in two directions from the begin- 

 ning of the duodenum, where its duct terminates. One portion fol- 

 lows the first part of the curvature of the duodenum to the extent of 

 6 inches ; the other and chief part of the gland passes from the py- 

 lorus behind the stomach to the spleen, and is 7 inches in length. _ 



The spleen is a long, flattened, ellipsoid body, about 1 1 inches in 

 length and 2\ inches across its broadest part at the middle. It 

 weighed 3 oz. 



The kidneys together weighed 6|- oz. ; they are not cleft or lobu- 

 lated, and are situated syinmetrically at the back of the hypochon- 

 dria. The supra-renal bodies are of an elongate, subcylindrical shape. 

 The heart is a somewhat flattened cone, with a produced pointed 

 apex formed by the left ventricle. The pericardium adheres to the 

 sternum ; it was covered with much fat. There is a large pleural sac 

 between the pericardium and the diaphragm, which contains the azy- 

 gous lobe of the lung, the long intra-thoracic inferior cava, the oeso- 

 phagus and descending aorta. 



The right lung is divided into three lobes and the * lobulus azygos'; 

 the left lung into two lobes, the upper and smaller lobe being slightly 

 subdivided. The tracheal rings overlap each other behind. The 

 thymus gland extended from the fore-part of the pericardium into 

 the neck. The thyroid gland consists of one elongate, narrow lobe, 

 concave where it is applied to the fore-part of the trachea, convex 

 where it is covered by the ' sterno-thyroidei'; it is about 2 inches in 

 length and 8 lines wide. The thyroid cartilage is of unusual length, 

 shaped like the side or section of a vase, convex outwards at its lower 

 half, and concave above, by the bending outwards of its broad upper 

 margin ; its length is 2\ inches, its breadth \\ inch. The arytenoid 

 cartilages are still more unusual in their conformation ; they are very 

 long, curved backwards, and confluent at their apices ; on each side of 

 this^prolonged confluent point they are deeply cleft, so as to form two 

 lateral pointed processes or appendages. A fold of membrane is con- 

 tinued from each lateral appendix outwards to the Hgamentous crura 

 of the epiglottis ; these folds form the outer walls of two large post- 

 arytenoid saccuU, which intervene between the larynx and pharynx. 

 A median fold of membrane is continued backwards from the middle 

 line and confluent apices of the arytenoids, and forms the septum 

 between the post-arytenoid saccuh. The mucous membrane of the 

 larynx is continued from the anterior and upper border of the thyroid 

 forwards and upwards into the concavity of the basihyal, forming a 

 wide but not very deep anterior sacculus. 

 The brain weighed Z\ oz. 



Female Organs. — The ovarium, 9 Unes long, 6 broad and 4 thick, 

 is kidney-shaped, and is suspended by the middle of the concave bor- 

 der by a short, thick peduncle, to which is attached the commence- 

 ment of the ostium abdominale of the oviduct ; this orifice is not fim- 

 briated, but has some delicate vn-inkled processes on its inner surface. 

 The peritoneal fold continued from this part to the end of the cornu 

 uteri, and which approximates it thereto, forms one side of the open- 

 ing of a wide ovarian pouch, upon the outer and fore-part of which 



