THE ELASMOBRANCII PISHES 



29: 





y 



-*~\ 



■■\ 



V 



X 



A B 



Fig. 253. Urogenital system, Squalus suckJii. (Duncan Dunning, orig.) A. Female. B. Male. 

 cl, cloaca; els., clasper; d.a., dorsal aorta; M., kidney; od., oviduct; ov., ovary; so., in 

 male, sperm sac; s.g., shell gland; t., testis; u., ureter; up., urinary papilla; u.s., urinary 

 sinus; ut.. uterus; ug.. urogenital sinus; v.s., vesieula seminalis; v.d., vas deferens; ted., 

 Wolffian duet. 



