Salni07iidac 



15 



ferox,'' length 35 inches, estimated weight 18 lbs., Loch Awe, 1906, 

 presented by Major H. Maclean ; (15) Loch Leven Trout, Loch 

 Leven ; (16) Gillaroo Trout, 5 lbs. 1|- o/... Lough Arrow, presented 

 by J. Gunning, Esq. ; (17-19) Trout from three Sutherlandshire 

 lochs, Scovu'ie, BoroUan and Crocach. 



Attention may be called to specimens illustrating the difference 

 between our Trout (S. trutta) and the Californian Eainbow Trout 

 (.S'. irideus) ; these are in table-case 43 in the Fish Gallery. 



20 — 27. Char, Salvelinus. — -Char are very similar to Trout, 

 but they have smaller scales and there are no black spots ; pink 

 or orange spots are usually present, and the lower part of the fish 

 is often of the same colour, or, in the lu'eeding season, even 

 crimson. Char are found in numerous lakes of Ireland, Scotland, 

 the Lake District and North Wales, and of Scandinavia and the 

 Alps. The Char {Salvelinus aPpimis) of the Arctic Ocean ascends 

 rivers to spawn, and does not range southwards as a marine fish 

 beyond Hudson Bay, Iceland, Helgeland in Norway and the 

 Kurile Islands. It is evident that the British and Irish Char are 

 lacustrine colonies of the northern Char, which must have 

 ascended our rivers when our seas were colder. The Char found 

 in our lakes differ from Salvelinus alpinus and from each other, and 

 may be regarded either as sub-species of S. alpinus or as so many 

 separate species ; fifteen have been recognized as distinct and have 

 received specific names. 



Fig. 7. — Lough Melvin Char. 



The exhibited specimens are : (20) *S'. grayi (fig. 7), from Lough 

 Melvin, distinguished by its deep body, few scales and large fins ; 

 (21) Salvelinus gracillimus, from the Shetlands, notable for its 



