212 



NORTHERN ZOOLOGY. 



Fins.— Br. 9—9; D. 12 or 13—0; P. 16; V. 12; A. 13; C. 1%. 



The ventrals originate under the sixth or seventh dorsal ray, but the structure and form of 

 all the fins are nearly as in C. lucidus. The adipose is not supported by interspinous bones, 

 but it exhibits in the dried specimen a very fine, apparently, fibrous structure, which entirely 

 disappears when the fin is moistened. In one specimen the centre between the tip of the snout 

 and end of scales on the caudal, corresponds with the first ray of the ventrals and thirtieth 

 scale of the lateral line, in another it is a little posterior to the first ventral ray, being at the 

 thirty-third scale of the lateral line : in the last specimen the lateral line has seven scales 

 more than the other. 



Dimensions 









Of two dried specimens. 











No. 



1. 



No. 



9. 





Inches. 



Lines. 



Inches. 



Lines 



Length from tip of lower jaw to tip of caudal 



. 13 



10 



12 



7 



„ „ snout to ditto 



13 



5J 



12 



3f 



„ „ end of central rays 



. 12 



3 



11 



7 



„ „ end of scales 



11 



9 



11 







„ ,, anus 



. 8 



6 



8 







„ ,, ventrals 



5 



10£ 



5 



7 



„ ,, dorsal 



. 5 



4* 



5 



c> 



„ ,, edge of gill-cover 



2 



7 



2 



5 



,, ,, nape 



. 1 



n 



1 



6| 



„ „ orbit 







7 







61 



„ „ nostrils 







3 







3 



„ of intermaxillaries, vertically 







9i 

 -■2 







2 



,, labials ..... 







8 







8 



,, lower jaw .... 



1 



'4 



1 



1* 



„ lateral line .... 



. 9 



3 



8 



9 



„ attachment of dorsal 



1 



2i 



"3 



1 



1 



„ its longest rays .... 



1 



7 



1 



5 



„ its last ray .... 







7 







6 4 



„ adipose fin ... 







6 







4* 



„ pectorals .... 



1 



8* 



1 



n 



„ ventrals ..... 



1 



6 



1 



6 



„ ventral appendages 







7 







6 



„ attachment of anal 



1 



2 



1 



1 



„ its longest rays 



1 







1 







„ its last ray .... 







n 







4| 



„ lobes of caudal . . 



2 



8 



2 



•-t 



„ its central rays, beyond the scales 







8£ 







a 



Depth of caudal fork .... 



1 



.1 



1 



1 



I subjoin the dimensions of two European Coregoni alluded to in the preceding 

 pages, that they may be compared with the American species. 



