14(5 salmoxid-t;. 



coma'uis, and preserved in the Berlin Museum, is probably the same 

 which is mentioned in the original description. Its total length 

 nearly corresponds with that of which the measurements are given 

 by Pallas, but there are some discrepancies in some of the details. 

 The larger specimen is 33 inches (Enghsh) long. 



The species is very closely allied to S. callaris. 



B. 12. D. 13-14. A. 12. L. lat. 200. 



Body as in S. callaris ; head small, its length being one-fifth of 

 the total length (without caudal). Snout of moderate extent, 

 slightly pointed. Eye very small, as in S. callaris. Maxillary very 

 slender and feeble, extending behind the vertical from the hind 

 margin of the eye. Teeth small. Pra^operculum with a distinct 

 but very short lower Umb, the angle being quite rounded. Pectoral 

 considerably shorter than one-half of the distance of its root from 

 the ventral ; caudal cUstinetly emarginate, nearly truncate in old 

 examples. Sides with numerous pale spots, each being about as 

 large as the eye. 



There can be no doubt that this fish is a Charr, and therefore it is 

 probable that the following notes added by Pallas refer to a distinct 

 fish:— 



" These fish frequent in great numbers the sea-bays and mouths 

 of the rivers both throughout the Arctic Ocean and in the North 

 Pacific, especially ci'stri tempore, not, however, ascending far from the 

 sea. From the bay of Okhotsk to the rivers Kutchni and Okota and 

 in the bay of Kora in the Northern Ocean they make their appear- 

 ance in the middle of June ; and a special fishery of them takes 

 place at some distance from the sea, and lasts throughout the month. 

 In the rivers of Kamtschatka, where they are of the largest size, the 

 species appears as early as about the middle of April, being very 

 uncommon in the river which bears the name of Kamtschatka. It 

 belongs to the marine littoral fish which do not remain long in fresh 

 water, return to the sea in the middle of May, and appear a second 

 time at the end of June. They are also found in the lower part of 

 the river Chatanga." 



18. Salmo curilus. 



Salnio cui-ilus, Pall, Zooqr. Ross.-As. iii. p. 351 ; Cuv. ^- Val. xxi. 

 p. 244. 



A Charr from the rivulets of the CurUe Islands. 



B. 10. D. 10-11. A. 10. P. 15. V. 10. 



In shape slenderer than S.fario, with the head and cleft of the 

 mouth shorter. Upper jaw a little shorter, obtuse, with two tuber- 

 cles above, armed on the margin with shai-p, close-set, curved teeth, 

 as is also the margin of the maxillaiy ; the lower jaw with teeth 

 scarcely larger, " sed majores denticuli in arcu palati medio inter- 

 rupte muricato," and fewer in a double series on the tongue. Opercles 

 of the gills semioval. Caudal somewhat forked, more deeply cleft 

 than in S. fario. Body with small scales, blackish above, brownish 



