of the Fishery Board for Scotland. 



141 



Ski 



11 of G. esmarkii, 



> 5 



G. minutus, 26 cm. 

 G. luscus, 28 cm., 

 G. esmarkii, 



LETTERS USED. 



Ang — Angle. 



b. Oc. — Basi-occipital, 



E. — Ethmoid. 



e. Oc. — Ex-occipital. 



F. — Frontal. 



Oc. Sp. — Occipital Spine. 

 op. 0. — Opisthotic. 

 P. — Parietal. 



P. pr. — Process of Parietal. 

 par. Oc. — Par- occipital. 

 p. S. — Parasphenoid. 

 pr. F.- -Pre-frontal. 

 pt. F.— Post-frontal. 

 Sq. — Squamosal. 

 V. — Vomer. 



LIST OF TABLES. 



Page. 



Localities near Aberdeen where the examples of G. luscus and G. minutus 



were captured, . . . . . . . .118 



Localities where some of the G. esmarkii were obtained, . . .118 



Table showing the sex and sizes of the fishes examined, . . .119 



Table showing the average lengths of the bases of the unpaired fins, 124-5 

 Table showing the ratio of the length of the base of the first anal to that of 



the second anal, . ... . . . . . 125 



Table giving the sum of the lengths of the bases of the dorsal and anal fins, 126 

 Table showing the average number of rays in the unpaired fins, . . 126 



Table of the average index of the fin-rays for each fin, . . . 127 



Table of the number of rays in the paired fins and caudal fin, . .128 



Table I. — Gadus luscus. Number of Vertebrae, the Number of the 

 Vertebra bearing the First Haemal Arch, and the Number 

 of Fin-rays, ...... 142 



,, II. — Gadus minutus. Number of Vertebrae, the Number of the 

 Vertebra bearing the First Haemal Arch, and the Number 

 of Fin-rays, ...... 143-4 



,, III. — Gadus esmarkii. Number of Vertebrae and Fix-rays, 145-7 



., IV. — Gadus esmarkii. Number of Vertebra bearing the First 



ILemal Arch, ....... 148 



,, V. — Gadus luscus, G. minutus, G. esmarkii. The Range of Varia- 

 tion in the Number of Fin-rays in each Fin. Frequency 

 of each Number, . . . . . .149 



,, VI. — Gadus luscus, G. minutus, G. esmarkii. The Range of Varia- 

 tion in the Number of Vertebrae. Frequency of each 

 Number, . . . . . . .150 



,, VII. and VIII.— Gadus luscus. The Body-Dimensions represented 

 as Percentages of the Length of the Fish. Average at each 

 size (Centimetre groups), .... 151-2 



,, IX. and X. — Gadus minutus. The Body -Dimensions represented as 

 Percentages of the Length of the Fish, Average at each 

 size (Centimetre groups), .... 153-4 



XL and XII. — Gadus esmarkii. The Body-Dimensions represented 

 as Percentages of the Length of the Fish. Average at each 

 size (Centimetre groups), .... 155-6 



,, XIII. — Gadus luscus, G. minutus, G. esmarkii, The Range of Varia- 

 tion of the Body-Dimensions, .... 157 



