PROFESSOR OWEN ON THE AYE-AYE. 71 



fold, projecting from the back surface close to the margin. The tonsils (fig. 7, c) 

 project as compressed processes, two lines in length, one on each side of the pharynx. 

 The epiglottis {ib. e) appears as a thick, transverse, semilunar fold, slightly swollen and 

 notched at the middle ; when pressed backwards, it bridges over the anterior half of 

 the glottis. 



The back part of the beginning of the oesophagus appears to include a thick plexus 

 of veins. The oesophagus, commencing opposite the middle cervical vertebra, passes 

 along the middle line, immediately beneath the spine, inclining slightly to the left, where 

 it enters the thorax ; in which cavity it is continued, in the posterior mediastinum, 

 where it lies more loosely than in Man. 



§ 8. Abdominal Viscera. 



Disposition of the Abdominal Viscera. — On exposing the abdominal cavity, the stomach 

 (PI. XXVI. fig. 1) was seen occupying the upper part, extending from the left to the 

 right hypochondria. Below the left side of the stomach appeared part of the spleen 

 (ib. k). Above the stomach, reaching to within half an inch of the lower margin of 

 the ribs, was the liver, but confined to the epigastric and right hypochondriac regions. 

 The convolutions of the intestines extended over the rest of the cavity, the large intes- 

 tines occupying the lower third, and the urinary bladder, with the urachal duplicature, 

 appearing at the lowest part. 



The suspensory duplicature of peritoneum, having the remains of the umbilical vein 

 at its free margin, enters between the fissure of the cystic lobe defining the umbilical 

 lobule to its left, whither it is reflected from the middle line of the diaphragm. The 

 great epiploon was packed in folds between the stomach and the mass of small intes- 

 tines ; it was continued from the great curvature of the stomach, and sent a process 

 upward and forward which adhered to a notch in the border of the cystic lobe of the 

 liver. The right kidney (PI. XXIV. fig. 1 , iy, resting on the transverse processes of 

 the second and third lumbar vertebrae, was higher or more advanced by half its own 

 ength than the left kidney. The adrenal bodies {ib. u) lay upon the inner and upper 

 ends of the kidneys. 



Alimentary/ canal. — The oesophagus (PI. XXVI. fig. 1, a), having perforated the dia- 

 phragm in the usual place and way, has a course of about a third of an inch in the 

 abdomen before terminating at the cardiac orifice {ib. b) of the stomach. This orifice 

 is situated nearer the pylorus (p) than to the cardiac end (c). The stomach (PI. XXVI. 

 fig. 1, 6, c, d, e) is of a simple, full, subglobular form: it measures 3 inches 3 lines 

 long, when moderately distended ; 2 inches 6 lines from the cardia to the middle of the 

 great curvature (rf), both in a straight line ; the pyloric end projects about half an inch 

 beyond the pylorus (p). A narrow glistening tract of fine aponeurotic fibres (/) runs 

 parallel with, and a little below, the short curvature {g) between the cardiac and pyloric 

 ' This figure was drawn on the stone, from the original drawing, without reversing. 



