FISHES. 547 



met with on the coasts near Archangel the one called by 

 the Russians " nelma," which appears to be identical with 

 0. nelma, Pall. ; the other taken by Liljeborg, and by him 

 supposed to be 0. dupeoides, Pall. 



It would therefore appear that now our modern Swedish 

 naturalists suppose that we have five distinct species of 

 gwynniad in Scandinavia, besides the ft sik loja," and 

 without entering into the* question as to whether this new 

 C. megalops is a good species or not, it will be best to 

 include it in the list as a species, and leave it for a matter of 

 future investigation. 



I believe the three first described to be good and distinct 

 species, viz. : 



100. C. OXYEHYNCHUS, L. Nabb Sik. D. 



101. C. MARINA, Bl. Lof Sik. F. 



102. C. LAVAEETUS, Miss. Gra Sik. D. F. 



For diagnoses of these refer to the introductory remarks. 

 Certainly these three are the common species of gwyn- 

 niad peculiar to Scandinavia. 



103. C. NILSONII, Val. Bla Sik. F. 



Is a small species, rarely exceeding 11 in. in length; 

 head small, pointed ; eyes large ; the point of the nose 

 flattened, double as broad as it is high; both jaws 

 nearly of an equal length; inter-maxillary bone bent 

 on the front edge, and projecting beyond the tubercles 

 of the nose; ventrals without any axillary scales; 

 scales on the lateral line, 55 to 87; colour dark brown 

 shifting into steel blue (whence its Swedish name of 

 bla sik), gradually assuming a silvery tint on the sides; 

 below white not silvery ; dorsal and caudal brown-grey; 

 under fins white; the ventral and anal with blackish 

 points ; the body lancet-shaped. A. 14,15 ; P. 14 

 or 15; Y. 12; A. 15; tail deeply cloven. (This is 

 Nilsson's description.) 



Nilsson remarks that this species ought to be carefully 

 compared with two British species of gwynniad. 



Is principally found in ' ' Ringsjo," a lake in the south 



