308 



NORTHERN ZOOLOGY. 



in rows*. The fins generally, but the under ones especially, are small, and the 

 latter appear to have been of a pale hue. In form and proportion of parts, as Avell as 

 in dentition, this fish strongly resembles the Hirling, noticed in p. 141, and might 

 easily be confounded with the Salmon trout, p. 140, pi. 92, f. 1 ; though on exa- 

 mination some slight differences in the forms of the opercular pieces may be 

 detected. The characters ascribed by Dr. Gairdner to the Tsuppitch of the 

 Columbia (p. 224) agreeing well with this fish, and the names being so similar, 

 we may conclude that they are the same, and also that they belong to the species 

 named Silvery -white Salmon trout, by Lewis and Clarke. {Vide F. B. A., iii. 

 p. 163.) 



The Ultai of the New Caledonia tribes differs from the last in the scales being 

 firmer, duller, and rather smaller, and the body more thickly and generally covered 

 with black spots, which extend well down the sides. The spots on the dorsal and 

 tail are also more regular and conspicuous, and the teeth are stronger, especially 

 those on the palate bones ; a flexuose row on the vomer does not extend quite so 

 far back as the palatine teeth. The Ultai is most probably the Salmo Clarkii, 

 p. 225, and also the Dark salmon trout of Lewis and Clarke, noticed in p. 163. 



It is interesting to receive two fish so like European species as the Suppai and 

 Ultai from rivers falling into the Northern Pacific. They are very closely allied 

 indeed, by excernal form, to the Salmon trout, No. 2, p. 140, Hirling, No. 3, p. 

 141, and Nith trout, No. 5, p. 142, which are considered by many Ichthyologists 

 to be only varieties of salmo trutta, produced by local causes. 



Dimensions. 



Length from tip of snout to extremity of caudal 



,, „ end of its central rays 



„ „ end of scales on ditto 



,, „ end of anal 



„ ,, end of adipose 



„ ,, beginning of anal 



„ „ end of dorsal 



„ „ beginning of ditto 



„ „ ventrals 



„ „ end of gill-cover 



„ „ nape . 



„ ,, tip of labials 



,, ,, centre of orbit . 



„ of labials 

 „ under jaw 



„ pectorals 



,, ventrals . 



Height of dorsal 



Suppai. 



Ultai. 



Iu. Lin. 



In. Lin. 



10 10 



11 



9 11 



10 1 



9 2 



9 4 



7 6 



7 8 



7 6 



7 oi 

 ' "2 



6 8| 



6 11J 



5 6 



5 9 



4 6£ 



4 7 



4 10 



5 



2 1 



2 1J 



1 4 



1 44 



1 



1 li 



8| 



8| 



9f 



10i 



1 2 



1 2§ 



1 3f 



1 6i 



1 1 



1 2J 



1 1 



1 3 



* In ons specimen the spots on the fins are almost obsolete. 



