1 6 Guide to the British Fresh-Water Fishes 



slender form ; (22, 23) S. n-il\iu\hhii, the Windermere Char ; 

 (24, 25) S. maxiWaris, from Ben Hope, Sutherlandshke, remark- 

 able for the large mouth and strong jaws ; and (26, 27) -S. 

 kiUincnsis, from Loch Killin, Inverness-shire, a Char with blunt 

 snout and subterminal nioutii, large lins and very small scales. 



Whitefish, Coreqonus. — These fishes differ from Salmon, 

 Trout and Char in their smaller mouth, with the teeth minute or 

 absent, and in their larger scales. They have the general appear- 

 ance of Herrings, but are distinguished by the presence of an 

 adipose fin. They feed on minute Crustacea, insect larvae, etc. 

 Our species may be distinguished thus : — 



Mouth terminal ; lower jaw projecting . Coregonus vandcsius. 

 Mouth terminal ; jaws equal in front . 

 Mouth subterminal ; lower jaw the 



shorter ; snout truncated 

 Mouth inferior; snout produced . 



C. pollan. 



C. clupeoidcs. 

 C. oxyrhynchus. 



28. Vendace, Coregonus vandesius (fig. 8). — This little fish 

 inhabits two lochs at Lochmaben, in Dumfriesshire, and is repre- 



''':j^fr.!^^ 





Fig. 8. — Lochmaben Vendace. 



sented in Derwentwater and Bassenthwaite Lakes by a distinct 

 sub-species, Coregonus vandesius gracilior, which differs from tjie 

 typical form in having the body more slender, the fins smaller 

 and the dorsal rays more numerous. Vendace are never more 

 than 9 inches long. Species related to the Vendace inhabit the 

 countries round the Baltic, and others ascend Siberian rivers from 

 the Arctic Ocean. 



29. Pollan, Goregonvs pollan. — This species is abundant in 

 Lough Neagh, where it is regulai'ly netted for the market. The 



