FEMALE REPRODUCTIVE ORGANS. 55 



convoluted tube. From its ventral surface several 

 ducts pass out, and unite to form the ureter. Trace this 

 duct to the cloaca, and find its aperture in the latter. 

 It lies at the proximal end of the urethral groove, out- 

 side, but close to the aperture of the bladder. 



137. Note the bright yellow adrenal body lying along 

 the mesial border of the kidney. 



138. If your specimen be a male, now pass on to sec- 

 tion 143. If it be a female, proceed to study the Repro- 

 ductive Organs of the Female. Remove the ventral side 

 of the pelvis, as directed in section 121. Note the 

 slender homologues of the retractors of the penis, and 

 also the clitoris, much resembling a miniature penis. 

 Then open the cloaca on one side (123) and study the 

 clitoris more clearly ; observe the urethral groove between 

 its two small corpora cavernosa, and the relatively large 

 glans clitoridis in which it ends. 



139. Examine the urinary and accessory bladders 

 (125, 126, 127), which resemble those of the male. 



140. Examine the ovaries : granular-looking orange- 

 red masses, with ova of varying maturity and very dif- 

 ferent sizes in them. 



141. Find the oviduct. It is a slightly convoluted 

 tube lying in a broad fold of peritoneum, and opening 

 by a wide mouth into the peritoneal cavity dorsal to 

 the posterior end of the lung. Follow it to the cloaca, 

 where its walls are thicker than elsewhere. Then, on 

 the interior of the cloaca seek two small papillae, one 



