of the Fishery Board for Scotland. 



119 



Length. 



G. Esmarkii. 



6r. Minutus. 



0. Luscus. 



Total at Each Size. 



























Cm. 













Sex. 





















Sex. 











Sex. 







g 





o 



o 

 + 



? 



o 



0 

 + 



? 



0 



2 



p 



5 

 K| 



in 









8 





* -I 

















1 







9 





2 



"i 















3 







10 



1 





3 















4 







11 



5 



'o 



5 





"3 



... 





■■ 





16 



0 





12 



3 



8 



2 













13 







13 



2 



3 















5 







14 



4 



13 



"2 





"2 









19 



2 





15 



4 



20 





"i 



1 











24 



2 





}- 





12 



1 



q 



3 





"i 







13 



6 



"i 



17 



"i 



8 





6 



7 











9 



13 





18 





5 



"i 





6 











6 



11 





19 





3 



i 



7 



11 



2 









4 



20 





20 









8 



21 













29 





21 





"i 





8 



60 



2 



"i 







1 



70 



"1 



22 









6 



69 













75 





s 











43 



"i 











44 





24 



... 









27 



1 



2 



"i 







28 



"3 



25 











16 



1 



2 



1 







17 



3 



26 





... 



... 





0. 





5 



2 







9 





27 











3 





7 



5 



"i 





3 



13 



28 















1 



6 



1 







8 



29 

 30 



... 

 ... 



... 







i 





1 



0 



3 

 2 







i 



4 



5 



31 

















2 









2 



















2 









2 



33 





... 



::: 









"2 











2 



34 



35 







... 









2 

 1 



"2 









2 

 3 



36 





... 











1 











1 



37-39 







... 





















40 







... 











"i 









"i 



Total— 





















118 



333 



58 



The Body Dimensions. 



The comparison between the three species is instituted then by means 

 of the following body dimensions : — 



The Girth is measured by means of a thread passed round the fish at 

 three points : — (1) Pectoral Girth — in the axilla close to the base of the 

 pectoral fin. (2) Girth at anus — at the level of the anus. (3) Girth at 

 the root of the tail — at the thinnest part of the caudal peduncle, i.e., the 

 part of the tail extending between the end of the third dorsal fin and the 

 beginning of the caudal fin. 



Dorso-Ybntral Height of Body. — This dimension was measured by 

 callipers. For the pectoral height the point of the callipers was put 

 between the bases of the ventral fins, while the other point was made to 

 touch a point in the dorsal line, immediately above. The callipers were 

 made to touch the parts lightly. The other two points were at the level 

 of the anus and on the root of the tail, at the narrowest part. 



Diameter of the Eye. — The diameter of the eye was the horizontal 

 diameter of the orbit. 



Interorbital Space. — The interorbital space is the distance on the 

 dorsal surface of the head between the orbits. 



Greatest Length of the Ventral, Pectoral, and First Dorsal 

 Fins. — The fin was measured from the base of the first ray, i.e., in the 



