456 



THE RABBIT. PHYLUM CHORDATA 



kidney corresponding to that which is functional in the frog, 

 which in the adult may be seen as the epididymis, lying along 

 the side of the testis and enlarged at the front and hind ends 

 into a caput and cauda respectively. The cauda epididymis is 

 connected to the scrotal sac by a short, elastic cord known as the 

 gubernaculum. Each epididymis consists of a mass of twisted 

 tubules joining into a single, much-coiled tube which becomes 

 continuous at the cauda with the vas deferens (or ductus deferens). 



• TJ. 



^y^- pr. / ^ .u. 



-u,r. 





r-y 



-o.v 



Fig. 359. — The reproductive organs of the rabbit. A, Male ; B, female. In each 

 case the dissection is made from the left side, the animal lying on its back. 



bl.. Bladder , c.cav., corpus cavernosum ; c.cav.cL, corpus cavemosum of the clitoris ; Cp., Cowper's gland ; 

 epd., cauda epididymis ; epd'., caput epididymis ; F.t., Fallopian tube ; f.o., fimbriated opening of the 

 same ; ov., ovary ; p.g., perineal gland ; pn., penis ; pr., prostate ; r.g., rectal gland ; rm., rectum ; 

 sc.s., scrotal sac; sp.c, spermatic cord (cut short) ; sym., symphysis pubis; t., testis; ur., ureter; 

 ut., uterus ; ut.m., uterus masculinus ; uth., urethra ; v.d., vas deferens ; vag., vagina ; vest., vestibule 



This passes forwards out of the scrotal sac, curves over the ureter, 

 and passes backwards again to open with the mouth of a small 

 median sac known as the uterus masculinus, which lies above the 

 neck of the bladder within the pelvic girdle ; it is absent from 

 some rabbits, but is large in many mammals, for example the 

 guinea pig. The uterus masculinus opens into the neck of the 

 bladder, which is known after their junction as the urinogenital 

 canal or urethra, and passes backwards into the penis, at the end of 

 which it opens. Beside the uterus masculinus lie the prostate glands 

 which pass their secretion into the urethra, and behind the prostate 

 are Cowper's glands. The products of the testes and all these 

 glands make the semen. The penis is situated behind the symphysis 



