COMMON TROUT. 59 



along the whole length of the vomer ; the disposition of the 

 teeth and the form of the gill-cover shown in outline at 

 page 3 ; the convexity of the dorsal and ventral outline 

 nearly similar : the colour of the back and upper part of 

 the sides made up of numerous dark reddish brown spots on 

 a yellow brown ground ; eleven or twelve bright red spots 

 along the lateral line, with a few other red spots above and 

 below the line ; the lower part of the sides golden yellow ; 

 belly and under surface silvery white ; the spots on the sides 

 liable to great variation in number, size, and colour ; dorsal 

 fin and tail light brown, with numerous darker brown spots ; 

 the adipose fin brown, frequently with one or two darker 

 brown spots, and edged with red ; the pectoral, ventral, and 

 anal fins uniform pale orange brown. The number of scales 

 in a row above and underneath the lateral line about twenty- 

 five. 



Deformed Trout are not uncommon ; mention of them 

 as occun-ing in some of the lakes of Wales is made by Pen- 

 nant, Oliver, and Hansard. " In 1829," says the writer of 

 the article on Angling in the seventh edition of the Ency- 

 clopsedia Britannica, " we received some very singular Trouts 

 from a small loch called Lochdow, near Pitmain, in Inver- 

 ness-shire. Their heads were short and round, and their upper 

 jaws were truncated, like that of a bull-dog. They do not 

 occur in any of the neighbouring lochs, and have not been 

 observed beyond the weight of half a pound." Such a Trout 

 from Lochdow was presented 

 to the Museum of the Zoolo- 

 gical Society by the Honour- 

 able Twiselton Fiennes : the 

 vignette is a representation 

 of the head of that specimen. — 



