1. SALMO. 31 



gularly X-shaped black spots. Sides of the head and dorsal fin with 

 a few small round black spots. Caudal and inner side of pectoral and 

 ventral blackish. 



Pyloric appendages forty-five. 



Description of a Female Sea-Trout, from the Tiveed, obtained during 

 the spawning -time, in January. 



inches. 



Total length 27f 



Greatest depth of the body 5^ 



Length of the head bh 



Girth of the biggest part of the body 14 



Least depth of the tail 2^ 



Girth of the narrowest part of the tail • • 5| 



Distance between the end of the snout and the eye . . 1^ 



Diameter of the eye | 



Length of the maxillary bone 2yL 



Distance between eye and angle of pra^operculum . . 2^ 



Greatest width of operculum 1-| 



Greatest depth of operculum 2 



Distance between occiput and origin of dorsal fin . . 8| 



Distance between end of dorsal and root of caudal . . 9| 



Length of base of dorsal 2^ 



Greatest height of dorsal 2^ 



Length of pectoral 2i 



Distance between root of pectoral and root of ventral 8^ 



Length of ventral fin ... 2|- 



Distance between root of ventral and origin of anal . . 5| 



Length of anal 2^ 



Greatest depth of anal 2| 



Length of longest caudal ray 3 



Length of middle caudal ray 1^ 



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

 fin, and slightly exceeds the length of the head, being two-ninths of 

 the total length (without caudal). 



The snout is moderately produced, conical, and is three-fifths of 

 the length of the postorbital portion of the head, or seven-eighths of 

 that of the maxillary bone. The mandible is without hook, and the 

 jaws can be brought into perfect contact. The maxillary bone is 

 longer than the snout by two-fifths of the diameter of the eye, and 

 extends beyond the posterior margin of the orbit : the width of its 

 broadest part is two-thirds of the diameter of the eye. 



The teeth of the mandible are larger than those in the upper jaw ; 

 those of the intermaxillary bone are about equal to those of the pala- 

 tine series, and are larger than those of the maxillaries. Of the 

 vomerine teeth only two remain ; they are placed in a transverse 

 series between the head and body of the bone. 



The interorbital space is very convex, the eye being situated con- 



