496 



WILLIAM NICOLL. 



The small ovary lies immediately in front of the anterior testis on the 

 right side. The yolk glands were not distinct. 



O, 





Fio. 



6. — Micnicotyle draconis. Ventral view x 25 (Specimen fioni Aberdeen). 0. Ova; 

 T. Testes. M. Rhodes del. 



MONOGENEA. 



The number of ectotrematodes collected was not very large, and they 

 were all, with perhaps one exception, common and well-knowai species. 

 Axine belones, Octobothrium merlangi and Octocotyle scombri w^ere found 

 on the gills of Belone vulgaris, Gadus merlangus and Scomber scombrus 



