of the Fishery Board for Scotland. 



273 



Green God. 

 (Gadus virens.) 



The eggs of the green cod were fertilized by Mr A. W. Brown, St 

 Andrews Marine Laboratory, in February 1894. 

 17 eggs were measured. 

 Of these : — 



1 egg measured P125 mm. in diameter. 

 1 1*147 

 14 eggs „ 1-17 „ 

 legg „ 1-188 „ 

 Average size P161 mm. 



M'lntosh * found that the ova of this form measured 1-143 mm. 



Five-bearded Rockling. 



(Motflla mustela.) 



A ripe five- bearded rockling was procured from Mr A. H. Gourlay, 

 St Andrews, on May 8th, 1895. 



63 of the ova, which were extruded by gentle pressure, were measured. 

 Of these : — 



1 egg measured '711 mm. in diameter. 



18 eggs „ -72 „ 



19 ,, ,, - 729 „ „ 

 18 „ „ -738 ,, „ 



5 )» )> '747 „ „ 

 1 egg „ -756 „ „ 

 1 „ „ "765 „ „ 

 Average size, -729. 



M'lntosh and Prince state that the unimpregnated egg on its escape has a 

 diameter of *73 mm., the measurements given by Mr Brook ranging from 

 '655--731 mm. Fulton found that the ripe eggs varied in diameter from 

 •77-72 mm. 



PLEUROJsTECTID^E. 

 Plaice. 



(Pleuroneetes platessa.) 



Some eggs of the plaice were procured by Prof. M'lntosh from Dunbar 

 Hatchery. They were, however, unfortunately dead before they were 

 measured, and probably dilated. 



* M'lntosh • On the Eggs of the Saithe,' Twelfth Report, Scottish Fishery Board. 



