1. SALMO. 27 



»//. A great number of skins of specimens of all ages. Firth of Forth 

 and Solway. From Mr. Parnell's Collection. 



Fordwich Trout 

 w. Female, very fine specimen, 19 inches long. Fordwich. Pre- 

 sented by the Right Hon. Earl Cowper. — Caec. pyl. 50. 



Irish Specimens. 



aa. Sixteen inches : skin. Lough Neagh. From Mr. Parnell's Col- 

 lection. 



hb. Fourteen inches and a half: skin, female. County of Down, 

 From Mr. Yarrell's Collection. 



Osteology. 

 cc, del. Skeletons of large specimens, male and female. Tweed. Pre- 

 sented by His Grace the Duke of Roxburgh. 



Specimens supposed to be hybrids between Salmo trutta mid 

 Salmo gaimardi. 



a. Male, 16 inches long. Lossie River, Moray Firth. Presented by 



Capt. J. B. Dunbar. Caught in March. Caec. pyl. 38. 



b. Female, 13 inches long. Lossie River, Moray Firth. Presented 



by Capt. J. B. Dunbar. Caught March 8th. Csec. pyl. 38. 

 c-d. Females, 15 and 13 inches long. Lossie -River, Moray Firth. 



Presented by Capt. J. B. Dunbar. Caught in April. Caec. pyl. 



42. The smaller specimen is sterile. 

 e-g. Females, from 10 to 12 inches long. Lossie River, Moray 



Firth. Presented by Capt. J. B. Dunbar. — Vert. 60 ; caec. pyl. 



36-46. These specimens were caught on the 24th of March, at 



which time specimens of this fish of the size indicated run up 



the river, but for a short time only, and without spawning. 

 Ji~i. Many specimens, from 6 to 7 inches long. Lossie River, Moray 



Firth. Presented by Capt. J. B. Dunbar. Caught in March 



and April. 



All the British specimens of Salmo trutta which I have examined 

 (with the exception of the Fordwich Trout) are from Scotland, and 

 all those obtained from the rivers of Wales and southern England 

 belong to Salmo cambricus (eriox). According to Parnell and 

 Yarrell, both these species would be found in Scotland as well as in 

 England ; but a careful examination of the typical specimens de- 

 scribed by those ichthyologists has shown me that the former ap- 

 plied the name of eriox to those specimens of S. trutta which had 

 the teeth on the vomer more completely preser\'ed, or which had 

 more numerous spots than others. But it is well known that no 

 distinction of species can be based upon such trivial grounds. How- 

 ever, a few of the specimens named ;S^. trutta by Parnell deviate so 

 much from the typical form, in having a stouter body or shorter fins 

 or a more perfect dentition on the vomer, that they might be taken 

 for a distinct species. But as they do not agree one with a^iother 



