VENOUS SYSTEM 



425 



FIG. 328. DIAGRAM OF THE 



the ventral side. 



SYSTEM OF Protopterus annectens. 

 (After W. N. Parker.) 



From 



at, atrium ; B. V. pelvic vein ; ra, conus arteriosus ; Cp, postcaval ; Da, intes- 

 tine ; DC, DC, precaval veins ; G.B, gall-bladder ; G.G, bile-duct ; Je, Ji, 

 internal and external- jugular ; L, liver ; L. G, lymphoid organ in the walls of 

 the stomach, the blood from which passes into the hepatic portal veins 

 (Vpo, Vpo 1 ) ; M, stomach; JV, A", kidneys; res, oesophageal vein; Ov.v, 

 ovarian veins ; p, pericardium ; par.v, parietal veins from the body- walls ; 

 v, ventricle ; V.rard, left posterior cardinal vein, which is connected by 

 anastomoses (ans) with the postcaval (Cp) in the region of the kidneys; 

 V.c.aud, caudal vein; Vh, Vh, hepatic veins; V.ren.port, renal portal vein ; 

 Vsbc, subclavian. 



