14 



LIFE-HISTORIES OF THE COD AND WHITING. 



trunk, occurring from 1 1 mm. onwards, and the regular dots at the bases of the fin-rays, 

 from 15 mm. onwards, are to be specially noted. 



Both species have, in common, the patches on the dorsal surface of the head, the 

 internal masses of pigment in the dorsal abdominal wall, the few specks over the 

 jaws and the dorsal and ventral external lines, the latter continued forward along 

 the ventral surface of the abdomen. These are probably all more or less gadoid 

 features. 



EXPLANATION OF PLATES. 



Plate I. 



Fig. 1. Lateral view of post-larval cod 4 - 5 mm. long x about 16 (viewed as transparent object). 

 Fie 2 5-2 



x 'o- - 1- >I 



!> »> " " J 



)» >? 



?J ?» )) )i 



Fig. 3. 



6 



)) ?) 



>> >? jj >* 



Fig. 4. 



7 



)5 J' 



n J) j) n 



Fig. 5. 



8 



n a 



M J) )i i) 



Fig. 6. 



9 



•) j» 



)) M )» )J 



Plate II. 



Fig. 7. Lateral view of young cod 11 mm. long x 11 (viewed as opaque object). 

 Fig. 8. 

 Fig. 9. 



19 



xlO 



24 



x 10 



Plate III. 





Fig. 10. Lateral view of post-larval gadoid (probably whiting) 6 - 6 mm. long x 15 (viewed as a transparent object). 



Fig. 11. „ „ „ „ „ 7-45 



Fig- 12. ,. „ „ whiting 9 „ x 17 „ 



Fig. 13. ,, ,, ,, ,. 12 ,, x 10 (viewed as an opaque object). 



Fig. 14. ,. young , 16 „ x 10 



Fig. 15. ,, „ „ ,, 24-25 mm. long x about 8 



