ab^.f 



Fig. io. — Organs of a female frog. The alimentary canal has been cut off 

 at the gullet {gul.) and rectum {ret.'), and most of the liver has been re- 

 moved. The right ovary and fat body are also removed and the ventricle 

 of the heart has been turned forwards, abd. v, abdominal vein cut and 

 turned back; t<7^/. w^j, coeliaco-mesenteric artery; cp. ad, corpus adi- 

 posum, or fat body; d. ao, dorsal aorta; gul, gullet; /. au, left auricle; 

 /. big, left lung; /. ovd, left oviduct; /. ovd' , its opening into the body 

 cavity; l.ovd",\\.% posterior dilatation or uterus; l.ovy,\(dX ovary; Ir, 

 portion of liver; //. cv, postcaval vein ; r. au, right auricle; ret, rectum ; 

 r. M, right kidney; r. Ing, right lung; rn.pt, renal portal vein; r. ovd, 

 right oviduct; r. ovd' , its opening into the body cavity; r. ovd", its 

 posterior dilatation; syst. tr, systemic trunks; u. bl, urinary bladder; 

 ur, ureter ; v, ventricle. (After Parker and Parker,) 



75 



