228 



ZOOTOMY. 



female, the anterior end of the oviduct (§ 212) : 

 make out : 

 In the male. 

 209. The testes (Fig. 52, ts), two white, ovoidal bodies, 

 about three-quarters of an inch long in the adult, but very 



aAr 



ci? 



Fig. 52. — Columba livia. The urinogenital organs of an adult 

 male, ventral aspect ( x |). 



The right testis and vas deferens are separated from the kidney and 

 ureter, and displaced outwards. 



adr^ adrenal : cl.2.j middle, and cl,"^, posterior, compartment of cloaca : 

 k^ kidney : /j, testis : «r, ureter : w/, opening of ureter into cloaca : 

 v.d, vas deferens ; v.d', its opeiiing into cloaca : v.s, vesicula seminalis. 



much smaller in young specimens : they are situated close 

 to one another, at about the level of the anterior border of 

 the thighs. 



210. The vas deferens (v.d), a delicate, white tube, 

 convoluted in the adult, but straight in the young, arising 

 trom the inner face of each testis, and passing directly 



