GWYNIAD. 



145 



in the following particulars : in the snout not being produced; 

 in the dorsal fin being nearer the head ; in having fewer rays 

 in the anal fin, and in its position being rather more distant 

 from the tail ; in the dorsal, anal, and caudal fins being of 

 less dimensions ; in the third ray of the pectoral fin being the 

 longest, the first being of the greatest length in the Gwyniad ; 

 and in the ventral axillary scale being longer. 



The vignette represents the bones of the head in the genus 

 Coregonus. 



VOL. II. 



