Elementary Zoology. 

 ,C.GL 



Yic. 34,— Diagram of vascular system of Rana. (Compound figure, after Howes.) 



The venous system is black, the arterial white. (N.B. the arterial vessels are really 

 deep of the veins, not superficial.) au, auricles; v, ventricle; ao, aortic arch; 

 c.c, carotids; c.gl, carotid gland; hb, brachial artery; br (black), brachial vein; 

 M.CUT, cutaneous vein; ant.ab, anterior abdominal; l, lung; liv, liver; cost., 

 coeliac ; len.int.v, il.v, portal vein ; t, testis ; k, renal organ ; r.por. renal portal ; 

 d.ao, dorsal aorta ; fem, femoral vein ; tel.v, pelvic vein : sc_. sciatic vein. 



