] . SALMO. 49 



** Specimens from Denmark. 



t-^v. Two Females, 13-14 inches long, with mature ova; and one 

 Male, 12 inches long, with the testes fully developed. Caught 

 in November. Presented by the Copenhagen Museum. Csec. 

 pyl. 41 ; Vert. 59. These examples had been feeding freely 

 on small fish. 



Description of a Male Hybrid specimen from the Ogmore, caught in the 

 month of August, ivitJi the testicles fully developed. 



incties. 



Total length 19| 



Greatest depth of the body 3f 



Length of the head 4| 



Girth of biggest part of body 9^ 



Least depth of the tail 1| 



Girth of narrowest part of the tail 4 



Distance between end of snout and eye ly^y 



Length of maxillary bone 1| 



Distance between eye and angle of praeoperculum ... 1\ 



Greatest width of operculum ..." . | 



Greatest depth of operculum I4 



Distance between occiput and origin of dorsal fin . . 5| 



Distance between end of dorsal and root of caudal . . 6| 



Length of base of dorsal . . , 2 1'^ 



Greatest height of dorsal 2| 



Length of pectoral 2^ 



Distance between root of pectoral and root of ventral 4| 



Length of ventral fin 2^ 



Distance between root of ventral and origin of anal . . 3^ 



Length of anal fin 1| 



Greatest depth of anal 2| 



Length of longest caudal ray 2| 



Length of middle caudal ray Ig 



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

 fin. and contained four times and three-fourths in the total length 

 (without caudal) ; the length of the head is contained foui^ times in 

 the same. The snout is much produced, elongate-pyramidal, and 

 its length is contained once and one-half in that of the postorbital 

 part of the head ; the lower jaw bears a hook about one-eighth of an 

 inch in height, which prevents the mouth from being closed. The 

 length of the maxillary bone exceeds that of the snout by one-half 

 the diameter of the eye, and extends slightly beyond the vertical 

 from the hinder margin of the orbit ; its greatest width is a little 

 more than half the diametei' of the eye. 



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

 the jaws are generally larger and fewer in number than in speci- 

 mens of the true Sewin. The mandibulary and intermaxillary teeth 

 are equal and much larger than those of the maxillary and palatine 



VOL. VI. E 



