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 



k 



v.cL.'- 



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, middle, and cl.i,, posterior, compartment of cloaca : 

 k, kidney : ts, testis : ur, ureter : ur y opening of ureter into cloaca : 

 v.d, vas deferens : v.d' t its opening 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 

 irom the inner face of each testis, and passing directly 



