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OF THE SOUTHERN APTERYX. 299 
. Bristles inserted into the ureters. 
. The papille, on which the vasa deferentia terminate. 
The penis. 
. The bursa Fabricit. 
. The right,—and m, the left lobe of the liver. 
. The gall-bladder : two cyst-hepatic ducts are seen entering its cerviz. 
. 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. 
w. The ureters. 
. The supra-renal glands. 
. The testes. 
. The vasa deferentia. 
PLATE LI. 
Fig. 1. Part of the digestive system of Dr. Logan’s female Apteryz. 
a. 
b. 
» 38s e 8B SoS 4S 
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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 t, the persistent vitelline sac. 
. The twig representing the omphalo-mesenteric artery. 
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. 
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