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The rectum laid open, showing the large glandule solitarie. 
Bristles inserted into the ureters. 
The papille, on which the vasa deferentia terminate. 
The penis. 
The bursa Fabricii. 
The right,—and m, the left lobe of the liver. 
The gall-bladder: two cyst-hepatic ducts are seen entering its cervia. 
The cystic duct. 
The hepatic duct. 
The pancreas. 
The spleen. 
The renal veins ; 
Their posterior anastomosis, forming the commencement of the portal 
system of veins; and u, their anterior anastomosis, forming the com- 
mencement of the inferior vena cava, and completing the circulus venosus 
renalis. 
. The kidneys. 
The ureters. 
The supra-renal glands. 
The testes. 
The vasa deferentia. 
PLATE V. 
Fig. 1. Part of the digestive system of Dr. Logan’s female Apteryz. 
. The proventriculus laid open, showing the thickness of the glandular coat 
and the internal surface. 
. The gizzard, showing the internal projections produced by the state of 
contraction of the cavity. 
_ The commencement of the duodenum, lined with thick epithelium. 
. The liver. . 
. The duct corresponding with the cystic. 
. The hepatic duct. 
The pancreas. 
_ The orifices of the pancreatic ducts. 
. The pedicle or obliterated canal of ¢, the persistent vitelline sac. 
. The twig representing the omphalo-mesenteric artery. 
®. A section of one of the ordinary bilobate proventricular glands. 3. A qua- 
drilobate proventricular gland. Both twice the natural size. 
4. Section of the right lung and air-sacs. 
K 2 
