THE SALMON FAMILY. 345 



base of which the Torgoch is supposed to pass the milder 

 seasons of the year in perfect security, only approaching 

 the shallower parts in small shoals about the middle of 

 December. 



The general characteristics of the Welsh Charr given by 

 Dr. Giinther are — 



Body slightly compressed and elongate, its greatest depth being 

 equal to one-fifth or two-ninths of the distance between the snout 

 and root of tail-fin ; length of head equal to considerably more than 

 one-half of the distance between the snout and origin of back-tin. 

 Head rather depressed ; space between the orbits of the eyes flat, its width 

 being less than twice the diameter of the eye. Males with the lower 

 jaw largest; teeth of moderate strength, 6 in each intermaxillary 

 bone *, 20 in each maxiUary *. Length of pectoral fin less than that 

 of head, but much more in length than half the distance between 

 its root and the root of the ventral fin. 170 transverse series of 

 scales above the lateral line. Colour : sides with numerous red dots ; 

 belly red ; pectoral, ventral, and anal fins with white margins. 



D. 13 or 14 : A. 12 or 11 : P. 12 or 13 : V. 9. 



The following additional particulars are taken from a male fish 

 9 inches long, of which Dr. Giinther gives a detailed description. 



Nostrils situated midway between eyeball and end of snout ; the 

 anterior nostril round, open, surrounded by a membrane, which is 

 developed behind into a small fiap almost entirely covering the smaller, 

 oblong, hinder nostril. (By this character alone, Dr. Giinther says, 

 the Torgoch may be distinguished from the Windermere Charr and 

 Fresh-water Herring.) The maxillary bone * extends slightly beyond 

 the hinder margin of the eye, and is armed with from 19 to 21 teeth 

 of moderate size; 6 or 7 teeth in each intermaxillary*; 17 in each 

 mandible ; 7 teeth on vomer, forming two sides of a triangle, the point 

 furthest back. Scales very small and thin, and deeply imbedded in 



* See pp. 28 & 35. 



q5 



