" Char of Great Britain. 113 



silvery or yellowish ; small pale spots on the sides ; fins 

 dusky, the lower ones with pale anterior edges. 



Loch Killin, Inverness-shire. 



Several specimens^ 200 to 350 mm. in total length, types 

 of the species. 



2. Salvelinus struanensis. 



Salmo struanensis, Gibson-Maitland, Field, 1881, p. 516. 



Depth of body 4 to 5 in the length, length of head 3| to 4^. 

 Snout obtuse, with upper profile decurved, nearly as long as 

 or a little longer than eye, the diameter of which is 4 to 4^ 

 in the length of head. Interorbital region nearly flat, its 

 width 3f to 4 in the length of head. Dentition feeble or 

 moderate ; lower jaw shorter than and included within the 

 upper ; maxillary extending to below the posterior part of 

 eye, its length 2§ in the length of head ; lower jaw rounded 

 anteriorly, its length If to If in the length of head. 10 

 branchiostegals, 13 or 14 short gill-rakers on the lower part 

 of anterior arch. 158 to 180 scales in a longitudinal series. 



Fig. 1. 



a. Salvelinus struanensis. h. S. infrmnnnchcs. cJs, natural size. 



Dorsal with 9 branched rays, its origin nearly equidistant 

 from the tip of snout and the base of caudal, the longest ray 

 § to I the length of head. Anal with 8 branched rays. 

 Pectoral | to | the length of head, extending f to | ( J ) or 

 a little less than | (?) of the distance from its base to the 

 base of pelvics. Least depth of caudal peduncle 1^ to 1| in 

 its length and ^ to -| the length of head. 



Hab. Loch Kannoch, Perthshire. 



Four specimens, three males and a female, 175 to 210 mm. 

 in total length, including the types of the species. 



