272 



Part III.- — Thirteenth Annual Beport 



The average size was 1*458 mm. 



M'lntosh and Prince* give 1 '45 mm. as the size of the eggs of the 

 haddock. Fultotif found in the ovary of the haddock cleat ova 1*39—1*2 

 mm. in diameter. 



Cod. 



( Gadus morrhua. ) 



A collection of the eggs of the cod were received from Dunbar hatchery 

 on March 27th; they had been fertilized on March 22nd, 1895. 

 92 eggs were measured. 

 Of these : — 



24 eggs measured 1 35 mm. in diameter. 

 10 „ „ 1-359 „ 

 9 „ „ 1-368 „ 



3 „ „ 1-377 „ 

 5 „ „ 1-386 „ 



16 „ „ 1-395 „ 

 2 „ „ 1-404 „ 



4 „ „ 1-417 „ 

 18 „ „ 1-44 „ 



1 „ 1-467 „ 



Average size, 1*386 mm. 



M'lntosh and Prince found that the ova of the cod measured 1*375 

 mm. in diameter. The ripe intra-ovarian ova of the cod examined by 

 Fulton varied from 1*2—1*4 mm. 



Whiting. 



(Gadus 7nerlangus.) 



The eggs of the whiting were obtained from a St Andrews fishing 

 boat. They were fertilized by Mr R. Duncan on April 6th, 1894. 

 Of 56 ova which were measured : — ■ 



1 egg measured 1*161 mm. in diameter. 



7 



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117 



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1179 



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1-188 



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1*197 



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1-206 



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1-224 



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1-257 



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Average size, 1-2042 mm. 

 According to M'lntosh and Prince, the size of the ova of the whiting is 

 about 1 125 mm. Fulton found that the ripe intra-ovarian eggs of this 

 species measured from 1-2-1-3 mm. 



* M'lntosh and Prince, ' Development and Life- Histories of Teleostean Fishes.' 

 f Fulton, 'The Comparative Fecundity of Sea Fishes,' Ninth Annual Report 

 Scottish Fishery Board. 



