SALMONOIDE^E. 



207 



19f 



Fins.— Br. 8—9; D. 15—0; P. 15; V. 12—11 ; ,4. 15; C. 



The three anterior rays of the dorsal are short, as are also the two first anal ones. The 

 first ray of the ventral is opposite to the space between the eighth and ninth dorsal ray. The 

 ndipose corresponds with the end of the anal, and the attachment of the latter equals the space 

 between its last ray and the outermost of the nineteen longer caudal rays. 











Dimensions. 











Inches. 



Lines. 







Length 



from 



tip of snout to tip of caudal . 14 







Length 



of lower jaw 



» 



» 



central rays . 



. 13 







33 



attachment of dorsal 



» 



» 



end of scales 



. 12 



4 



3J 



its longest ray 



» 



>> 



anus . 



9 



3 



33 



pectorals 



j> 



>j 



ventrals 



. 5 



11 



J) 



ventrals . 



»j 



33 



dorsal . 



5 



6 



33 



attachment of anal 



)? 



33 



edge of gill-cover 



. 2 







33 



its longest ray 



?> 



» 



nape 



1 



5 



33 



lobes of caudal 



j> 



33 



centre of pupil . 



. 



8* 



3) 



its longest rays 



» 



33 



edge of orbit . . 







6 



33 



central rays . 



33 



of lateral line 



. 10 



8 



Depth of caudal fork . 



3> 



intermaxillaries, vertically 







3 



33 



body 



J) 







5 



Spread 



of caudal 



Inches. Liues. 

 8| 



5 



n 



4 



5 



3| 



7* 



3 







10 

 5 



6 



[80.] 6. Salmo (Coregonus) lucidus. (Richardson.) Bear Lake 



Herring- Salmon. 



Plate 90, f. 1, A and B, one-halt' nat. size. 



Baron Cuvier's remark on our specimen of this fish was, " Coregone, encore plus 

 semblable an Salmo marsena que le Round-fish : Mais les ecailles du Salmo marcsna 

 sont plus grandes que celles de le Herring- Salmon." We have not had an oppor- 

 tunity of comparing the American species with the marcsna, but the lucidus and 

 quadrilateralis differ much from each other in the form of the body, as well as in 

 other particulars, such as the size and shape of the scales, the breadth and com- 

 parative length of the snout, and the size of the labials and aperture of the mouth. 

 The C. lucidus has a compressed body, like a species which we have received from 

 Lake Leman under the name of Lafera, and also like the Vendace, or Vendise*, 

 from Lochmaben in Scotland, but the scales of these two are smaller ; the Fera has 

 larger intermaxillaries like the Attihawmeg, and the Vendace has an acute under 

 jaw, which forms the extreme point of the head when the mouth is closed. None 



* Piscis in lacu Mabanu, Vande&ius. Sjbbald., Scot, lllustr,, lib. 3, p. 26. Tradition says that King Robert Bruce 

 introduced this fish into the Castle Loch from France. 



