SYKSKI ON THE. ORGANS OF REPRODUCTION OF FISHES. 731 



Fig. 16. 



m ' 



V.-T-- 



IJJaV VJTfc 



rO — 



lifcs- 



Af 



Fig. 17. Piece of the ovary, twice its natural size, with ova- 

 rian leaflets arranged in transversal rows, on its 

 outer surface. 

 The shorter border attached to the dorsal wall of 

 the abdominal cavity ; the longer being free. 



Fig. 18. 



Fig. 18. Piece of a somewhat developed ovary, one hundred 

 times the natural size, showing the transparent 

 eggs ivith the germinative vesicles and the germin- 

 ative dots. 



o 4 



Fig. 16. Female eel, longitudinal section 

 of the abdomen ; natural size. 



a. Right ovary. 



b. Left ovary. 



c. Accessory part of the right 



ovary. 



d. Left accessory part. 



e. Dividing membrane. 

 /. Anal depression. 



g. Urinary bladder. 



h. Fat on the right side erro- 

 neously taken for the testi- 

 cles by some. 



h'. Similar fat, covering the 

 stomach. 



i. Fat on the left side. 



k. Stomach. 



I. Pylorus. 



m. Liver. 



n. Gall-bladder. 



oo. Pectoral fins 



Fig. 19. Anal part of a female eel, twice the natural size. 



a. Straight intestine. 



b. Fissura recto-vesicalis. 



c. "Urinary bladder. 



d. Annus. 



e. Partition. 



/. TJro-genital opening. 



g. Outlet of the genital opening in the urethra. 



