1. SALMO. 69 



reaching rather more than half of the distance between its root and 

 that of the ventral fin : ventral shorter, reaching about three -fourths 

 of the distance between its root and the vent ; its outermost ray is 

 vertically opposite to the tenth of the dorsal fin. All the fins except 

 the dorsal show signs of some check having affected their growth, 

 causing irregularity in the outer rays. Posterior margin of caudal 

 convex. 



There are 120 transverse series of scales, counted immediately 

 above the lateral line ; the series descending obUqucly backwards 

 from the origin of the dorsal fin to that line contains 29 scales, that 

 forwards from behind the adipose has 15 scales. There are 23 lon- 

 gitudinal series of scales between the lateral line and the ventral fin. 



The skin of the back is very thick, enveloping the scales of that 

 region. 



Sides of the body and head and the dorsal fin with numerous, 

 small, round, black spots. 



The testicles of this specimen are reduced to a thin band, as is the 

 case in sterile fish. . 



Description of a male specimen from Hampshire, caught in the 

 month of January [testicles fully developed). 



inches. 



Total length 16 



Greatest depth of the body 3j' 



Length of the head 3^ 



Girth of biggest part of body 8" 



Least depth of the tail 1-| 



Girth of narrowest part of tail 3-1- 



Distance between end of snout and eye 1\ 



Diameter of the eye |^ 



Length of maxUlary bone 1^ 



Distance between eye and angle of prseoperculum . . 1-j^ 



Greatest width of operculum | 



Greatest depth of operculum 1^ 



Distance between occiput and origin of dorsal fin . . 4f 



Distance between end of dorsal and root of caudal . . 4| 



Length of base of dorsal If 



Greatest height of dorsal 2|- 



Length of pectoral 2\ 



Distance between root of pectoral and root of ventral. 4^ 



Length of ventral fin 1-L| 



Distance between root of ventral and origin of anal . 2^ 



Length of anal fin l| 



Greatest depth of anal 1^ 



Length of longest caudal ray 2^ 



Length of middle caudal ray li 



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

 fin, and is contained four times and one-fourth in the total length, 

 not including the caudal fin. The length of the head is rather more 



