G2 SALMONIDvi;. 



ee, ff. ]\[any specimens. Rivers Owenbrean and Sacrapagh, Ferma- 

 nagh. Presented bj' the Earl of Enniskillen. 



(jfl. Many specimens. Mountain-lake near Galway Bay. Presented 

 by F. Godman, Esq. 



Specimens illustratinr/ the growth of this species. 

 hh. A series of specimens from the Tweed and Esk, from 1 to 3 inches 

 long. 



Deformed specimens. 



a. Upper part of the snout shortened. Old Collection. 



kl: Upper part of the snout shortened. Loch Roy, Invernesshire. 



Presented by H. C. PenneU, Esq. 

 II. Vertebral column forming an undulating curve. Old Collection. 



Description of a Male specimen from the Dee (Aherdeen), caurjht in 

 the month of September (^testicles fulli/ developed). 



inches. 



Total length lOf 



Greatest depth of the body 1| 



Length of the head 2% 



Girth of the biggest part of the body 4| 



Least depth of the tail ^ 



Girth of narrowest part of tail 2^ 



Distance between end of snout and eye f 



Diameter of the eye j'^ 



Length of the maxillary bone 1 



Distance between eye and angle of praeoperculum . . ^ 



Greatest width of operculum I 



Greatest depth of operculum | 



Distance between occiput and origin of dorsal fin . . 3 



Distance between end of dorsal and root of caudal . . 3f 



Length of base of dorsal 1 



Greatest height of dorsal If 



Length of pectoral If 



Distance between root of pectoral and root of ventral 2f 



Length of ventral fin l-j-^ 



Distance between root of ventral and origin of anal . 1| 



Length of anal fin | 



Greatest depth of anal li 



Length of longest caudal ray Ig 



Length of shortest caudal ray | 



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

 fin, and is one-fifth of the total length (caudal not included) ; the 

 length of the head is contained three times and three-quarters in 

 that of the body. The snout is moderately produced, pointed, and 

 half the length of the postorbital portion of the head. 



The length of the maxillary bone is equal to that of the snout 



