OVARY AND OVARIAN OVA IN CERTAIN MARINE FISHES. 163 



Fig. 30. — Germinal vesicle of an ovum "55 mm. in diameter, in a section of 

 the ripe ovary of a specimen of Trigla gurnardus. Fixed with picro- 

 sulphuric acid and spirit. Stained with hseraatoxylin. Zeiss C C, oc. 3. 



Fig. 31. — Portion of a section of tlie ovary of a conger 2 ft. long, killed 

 October 24:th, 1888. The figure shows two ovarian lamellae, Zeiss A, oc. 3. 



Fig. 32. — Portion of a section from the ovary of a conger of moderate size. 

 Zeiss A, oc. 3. /. Fat-cells, o. ova. 



Fig. 33. — Ovum from section of portion of the ovary of a conger, which 

 died with nearly ripe ovaries in the Plymouth aquarium March 21st, 1890. 

 Diameter, "65 mm. by "56 mm. Fixed with corrosive sublimate and acetic. 

 Stained with borax-carmine. Zeiss C C, oc. 2. 



Fig. 34. — Ovum from section of the ovary of an eel 21^ in- loJi!?) killed 

 November 15th, 1895. Fixed with chromic acid \ per cent. Zeiss C C, oc. 3. 



Fig. 35. — Section of testis of conger in the intermediate condition. 

 Zeiss A, oc. 2. /. Fat-cells, sp. Cords consisting of spermatic cells, v. d. 

 Vas deferens. 



