40 ELEMENTARY BIOLOGY. [CHAP. 



In 7\. icmporaria, the urinary bladder is larger 

 proportionately and more deeply lobed than in R. 

 csculoita. 



f. The spleen: a small red body lying in the middle 

 line, immediately in front and to your right of the 

 large intestine. 



,;•■. The kidneys; two dark red lentil-shaped bodies, 

 seen, on displacing the intestine, lying close to- 

 gether in the middle line. 



//. The genital glands ; immediately adjacent (ventral 

 and external) to^^ 



a. In the male. The testes: a pair of yellowish 

 bodies lying near the anterior ends of the 

 kidneys. 



/?. In the female. The ovaries; a pair of blackish 

 yellow bodies, coincident in position with, but 

 much more extensive than, a. Each is folded, 

 and seen to be composed of an immense number 

 of spherical cn^a. 



i. The fat inasses {corpora adiposa) ; long filiform 

 deep-yellow processes attached to the anterior ends 

 of the genital glands. They are much the larger in 

 the male. 



;'. The genital ducts; obvious in the female as highly 

 convoluted dead-white tubes {oviducts) lying imme- 

 diately beneath /?. (Those of the male may be 

 better studied later on.) 



k. The Jicart ; seen lying within a delicate sac (the 

 pericardium) immediately in front of the liver. 



Slit open the pericardium. It will be found to 

 contain a fluid {serous fluid) which bathes the en- 

 closed viscus (heart). Examine the i)leuro-peri- 



