56 SALMONID.E. 



Back ^i-('onish ; sides and belly brownish, with a silvery lustre. 

 Scattered black spots, of the size of three or four scales, occupy the 

 sides above the lateral Une and sparingly below it ; two or three 

 such spots are also found on the operciilum. Dorsal with black 

 spots ; the other fins immaculate, with a blackish tinge. 



DescriptUm of a Young Male, caw/ht in the month of August in the 

 Towey. 



inches. 



Total length 1Q\ 



(ireatest depth of the body 2f 



Length of the head 2y^ 



Girth of biggest part of body Si- 

 Least depth of the tail J-| 



Girth of narrowest part of tail 2| 



Distance between end of snout and eye | 



Diameter of the eye J^ 



Length of maxillary bone 1 



Distance between eye and angle of praooperculum . . -}-| 



Greatest width of operculum ^ 



Greatest depth of operculum | 



Distance between occipiit and origin of dorsal 2| 



Distance between end of dorsal and root of caudal fin 3| 



Length of base of dorsal 1^ 



Greatest height of dorsal 1| 



Length of pectoral If 



Distance between root of pectoral and root of ventral 2f 



Length of ventral fin 1| 



Distance between root of ventral and origin of anal fin 1 J 



Length of anal fin ^ 



Greatest depth of anal fin If 



Length of longest caudal ray 1 1 



Length of middle caudal ray \^ 



The greatest depth of the body is below the origin of the dorsal 

 fin, and is a little more than one-fourth of the total length (with- 

 out caudal) ; the length of the head is somewhat less than one-fourth 

 of the length of the body. The snout is moderately produced, coni- 

 cal ; and its length is rather more than half that of the postorbital 

 part of the head. The length of the maxillary bone exceeds that of 

 the snout by three-fourths the diameter of the eye, its greatest width 

 being equal to one-half of the same. 



The dentition of the jaws and palate is perfect; the teeth of the 

 maxillarj' and intermaxillary are smaller than those of the mandible 

 and palatine bones. The vomerine teeth are strong, and form a com- 

 plete series from one extremity of the bone to the other, some of 

 them being bent outwards. The interorbital space is somewhat 

 tlattened, the eye being immediately below the upper profile of the 

 head. The width of this space is two-sevenths of the length of the 

 head, and two-tliirds of the length of the maxillary bone. 



