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 fourteen or fifteen scales in a trans- 

 verse series running fi-om behind the adipose fin obliquely forwards 

 to the lateral line. 



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 fui round, and readily disappearing. 



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

 neural of the seventeenth vertebra. 



A migratoiy species, occurring in the rivere 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 Ravensworth. 



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



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

 spawning ; csec. pyl. 43. 



c-d. Females. Tweed. Presented by His Grace the Duke of Eox- 

 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 ; c£ec. pylor. 59. 



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

 by His Grace the Duke of Eoxburgh. " Sea-trout." Ctec. pvl 

 58 and 60. 



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

 by His Grace the Duke of Eoxburgh. "Bull-trout." CiEC. 

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



i. Female, 17 inches long. Tweed. PresentedbyMr. G.Smith. — This 

 specimen had been marked with copper-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. 



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

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

 Ciec. pyl. 49. 



m-n. Twelve inches long. Tweed. Presented by Mr, G. Smith. — 

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



o-t. " BuU-trout-smolts," 7 inches long. Tweed. Presented by 

 His Grace the Duke of Eoxbiu-gh.— Caught at the end of April, 

 when rimning down to the sea. 



u-x. " 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. 



?/. Male, stufied; 38 inches long. Portinlik (Sutherlaudshii-e), Pre- 

 sented by Sir Ph. Egerton. M.P. 



