1. SALMO. 25 



square in specimens of from 18 to 20 inches; but rare examples occur, 

 of 25 inches in length, in which this fin continues to show a slight 

 emargination. Tail not elongate, covered with thin, short, rounded 

 scales, like the body ; there are foiirteen or fifteen scales in a trans- 

 verse series running from behind the adipose fin obliquely forwards 

 to the lateral Hne. 



Young with nine or ten dusky cross bars, half-grown ones (Grilse- 

 state) with the top of the dorsal and pectoral, and with the hind 

 margin of the caudal black. Silvery, sometimes immaculate, generally 

 with more or less numerous X-like spots ; spots on the head and 

 dorsal fin round, and readily disappearing. 



The interneural spine of the first long dorsal ray is attached to the 

 neural of the seventeenth vertebra. 



A migratory species, occurring in the rivers falling into the Baltic 

 and German Ocean ; numerous in Scotland, but less widely distributed 

 in English and Irish rivers. 



a. Head of a very large male specimen (10 inches long). Tweed. 



Presented by Lord Kavensworth. 



b. Male, 35 inches long. Tweed. Presented by His Grace the 



Duke of Roxburgh. — Caught at the end of October ; ready for 

 spawning ; ca^c. pyl. 43. 



c~cl. Females. Tweed. Presented by His Grace the Duke of Rox- 

 burgh.— One, 28 inches long, caught in the month of December, 

 during spawning ; csec. pylor. 46. The other, 24 inches long, 

 caught in the month of January, after spawning ; ca3C. pylor. 59. 



e-f. Male and female, 18| and 20 inches long. Tweed. Presented 

 by His Grace the Duke of Roxburgh. " Sea-trout." Csec pyl. 

 58 and 60. 



g-7i. Male and female, 20 and 21 inches long. Tweed. Presented 

 by His Grace the Duke of Roxburgh. " Bull-trout," Caee. 

 pyl. 45 in the male, and 59 in the female. 



i. Female, ITincheslong. Tweed. Presentedby Mr. G.Smith. — This 

 specimen had been marked with copiDcr-wii'e in the right under 

 jaw in April 1864, when it was in the state called " Orange-fin," 

 and was recaptured on its return from the sea, August 1865. 



k-l. Females, 14 inches long. Tweed. Presented by His Grace 

 the Duke of Roxburgh. " Whitting." Caught at the end of April. 

 Caec. pyl. 49. 



rti-7i. Twelve inches long. Tweed. Presented by Mr. G. Smith. — 

 " Black-tails." Caught at the end of October. 



o-t. '■' Bull-trout-smolts," 7 inches long. Tweed. Presented by 

 His Grace the Duke of Roxburgh. — Caught at the end of April, 

 when running down to the sea. 



Vr-as. " BuU-trout-Parr," locally called " Orange-fins," from 4 to 6 

 inches long. Tweed. Presented by His Grace the Duke of 

 Roxburgh; caught in April. 



y. Male, stuffed; 38 inches long. Portinlik (Sutherlandshire). Pre- 

 sented by Sir Ph. Egerton. M.P. 



