ioo BRITISH FRESHWATER FISHES 



orange ; small orange spots on the sides, mostly 

 below the lateral line ; pectorals, greenish with a red 

 margin ; pelvics and anal, reddish, with a white 

 anterior edge ; caudal with an orange margin. 



Eleven examples sent to me by Mr. John Murray 

 measure 8 to 1 1 inches in total length ; from these I 

 have selected for illustration (PI. XI, Fig. i) a male 

 of i o inches. Three female fish about 8 inches long, 

 from Loch Stack, are very similar to the Ben Hope 

 Char, but until I have seen male specimens from 

 this locality I cannot be certain that the fish of the 

 two lochs are identical. 



MALLOCH'S CHAR (Salvelinus mallochi) is another 

 Sutherlandshire form which occurs in Loch Scourie, 

 where four examples, 8 to 12 inches long, were 

 captured by Mr. P. D. Malloch, the well-known 

 naturalist of Perth, in whose honour I named the 

 species. The largest of these, a male, is figured on 

 PL XI, Fig. 2. 



This is a rather short-headed, blunt-snouted, and 

 small-mouthed Char, with small scales (188 to 200 

 in a longitudinal series). The lower jaw is obtusely 

 pointed anteriorly and slightly shorter than the upper 

 even in adult males ; the paired fins are short. The 

 back and sides are slate coloured, covered with numer- 

 ous pale spots, the belly whitish, tinged with orange. 



As has been mentioned above, the Char of Lochs 

 Scourie and Stack and of the loch under Ben Hope 

 have a larger number of vertebrae (63 or 64) than 

 those of the rest of Sutherlandshire (59 to 61). 



THE ORKNEY CHAR (Salvelinus inframundus) is 

 a well-defined species, which has the interest that it 



