ab^.tf 



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

 at the gullet i^gul.) and rectum (rc^.), 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, add. v, abdominal vein cut and 

 turned back; coeL vies, cceliaco-mesenteric artery; cp. ad, corpus adi- 

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

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

 cavity; l.ovd",\is posterior dilatation or uterus ; I. ovy,]e.h ovary; /r, 

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

 r. kd, 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 



