294 FISHES OF THE FIRTH OF FORTH. 



form ; dorsal and caudal dusky, as well as the inner surface of the 

 pectorals. First dorsal fin placed half-way between the point of the 

 nose and the base of the long caudal ray ; the first and second rays 

 simple, the rest branched ; the third the longest, as long as the base 

 of the fin ; the last ray exactly one-half the length of the fifth ; adipose 

 fin situated in a vertical line over the base of the last anal ray, and 

 mid- way between the last dorsal ray and the tip of the tail. Caudal 

 fin slightly forked, the middle ray a very little more than half the 

 length of the longest ray in the same fin. The third ray of the anal 

 fin the longest, equalling the length of the same ray in the first 

 dorsal fin ; the last ray one-half the length of the fifth ; the sixth 

 as long as the base of the fin. Origin of the ventrals in a vertical line 

 with the last ray but six of the first dorsal ; the second ray the long- 

 est, equalling the length of the base of the dorsal. Pectorals point- 

 ed, the second and third rays the longest, nearly equalling the length 

 of the long caudal ray ; the last ray one-half the length of the eighth. 

 Gill-cover slightly produced behind ; suboperculum rather narrow ; 

 basal margin of the operculum oblique, in a line with the base of the 

 first ray of the dorsal ; preoperculum slightly sinuous. Jaws nearly 

 equal ; the end of the maxillary in a vertical line with the posterior 

 margin of the orbit. Teeth stout and sharp ; forty-four in the upper 

 jaw, twenty-four in the lower, twelve on each palatine, and eight on 

 the vomer. Scales thin, twenty-two in an oblique row between the 

 base of the middle dorsal ray, and the lateral line ; flesh red ; cseca 

 fifty-one. Number of fin rays — 



1st D. 12 : P. 13 : V. 10 : A. 10 : C. 19. 



~-f 



The migratory species of trout (not including the sal- 

 mon), when youngs as far as I have been able to ascertain, 

 cannot be distinguished with certainty one from another ; 

 therefore, in speaking of their habits, they must necessarily 

 be described together. The spawn, which is .shed in Octo- 

 ber, November, and December, begins to vivify in March 

 and April, or sometimes sooner, depending greatly on the 

 mildness of the spring, and the period in which the eggs 

 are deposited. In June, we observe the young sporting 

 about in the shallows, from two to three inches in length. 

 In August, September, and October, they are taken by an- 

 glers, from four to five inches long, under the name of hep- 



