108 THE ANATOMY OF VERTEBEATED ANIMALS. 



Marsipobranchii, this tissue appears to pass directly into 

 s]3ermatozoa ; but, in most Vertebrata, it acquires a saccxUar 



Fig. 27. 



Fig. 27. — Diagram exhibiting the relations of the female (the left- 

 hand figure, 2), and of tlie male (the right-hand figure, d") reproduc- 

 tive organs to the general plan (the middle figure) of these organs in 

 the higher Vertehrata. 



C/, the cloaca; R, the rectum; Bl, the urinary bladder ; CT". the 

 ureter ; K, the kidney ; Uh, the urethra ; G, the genital gland, ovary, or 

 testis ; W, the Wolffian body : Wd, the Wolffian duct ; M. the MiiUerian 

 duct ; Pst. prostate gland ; Cp, Cowper's gland ; Csp, the corpus spon- 

 giosum ; Cc, the corpus cavernosum. 



In the female, T', the vagina ; Ut, the uterus ; Fp, the Fallopian 

 tube ; Gt. Gaertner's duct; P.v, the parovarium ; A, the anus ; Cc, C.sp, 

 the clitoris. In the male. Cap, Cc, the penis ; f/f, the uterus mascu- 

 linus ; Is, vesicula seminalis ; J'd, the vas deferens. 



or tubiilar structure, and from the epithelium of the sacs, or 

 tubuli, the spermatozoa are developed. At first, the testis is 



