Fig. 75. — Venous system of the frog seen from the dorsal side, add, ab- 

 dominal vein; br, brachial vein; cd, cardiac, or vena bulbi cordis; ds. 

 Imb, dorso-lumbar ; du, duodenal ; extju, external jugular ; fin, femoral; 

 gs, gastric; hp, hepatic; hp.pt, hepatic portal ; int. intestinal; int.ju, 

 internal jugular; kd, kidney; Lou, left auricle; Ing, lung; tor, liver; 

 ms.cu, musculo-cutaneous ; pr.cv, precaval ; pt.cv, postcaval ; pul, pul- 

 monary; pv, peivic; r.au, right auricle; rn, renal veins; rn.pt, renal 

 portal; sc, sciatic; spl, splenic; spin, spermatic; s.v, sinus venosus; 

 ts, testis; ves, vesical veins. (From Parker and Haswell's Zoology.) 

 T 273 



