1. SALMO. 101 



23. Salmo levenensis. 



Salmo leyenensis, JFal/cer, JVeni. 3Iem. i. p. 541 : YarrelL Brit FUh 



2nd edit. n. p. 117; 3rd edit. i. p. 2o7. 

 Loch Leven Trout, Kichards, Faun. Bor.-Amcr. Pise p 143 

 -— WBCifer, Parnell, Fish. Firth of Forth, p. 146, pi. 30 (young, not 



D. 13. A. 11. P. 14. V. 9. L. lat. 118. L. trans. 28/26 

 Caec. pyl. normaUy 60-80. Vert. 59. 



Largest specimen observed, 21 inches ; female mature at a length 

 or inches. ° 



Head weU proportioned in its shape, and rather small when com- 

 pared with the body ; body much less stout than in S. fario The 

 postenor point of junction of operculum and suboperculum is nearer 

 to the lower anterior angle of the suboperculum than to the upper 

 end of the giU-opening. Prasoperculum generally with a very in- 

 distinct lower limb. Snout of moderate length, conical, not much 

 produced in the male sex, in which a mandibular hook has never 

 been observed. Maxillary much longer than the snout, but much 

 narrower and more feeble than in S. fario (see p. 6) ; in specimens 

 13 inches long it extends to below the hinder margin of the orbit 

 and at no age does it reach much beyond it. Teeth moderately 

 strong ; the head of the vomer is triangular, a little broader than lon^ 

 ^th a transverse series of two or three teeth across its base ; the teeth 

 ot the body of the vomer form a single series, and are persistent 

 throughout life. Pins well developed, not rounded ; the pectoral is 

 pointed, and m specimens of more than 12 inches in length its lcn"-th 

 is less than one-half of the distance between its base and that of the 

 ventral. The caudal fin always has the lobes pointed, is emarginate 

 and appears truncate only when stretched to the utmost extent In 

 specimens 13 inches long the midcUe caudal rays are not quite half 

 as long as the outer ones, and in older ones they are half as long 

 Ihe hind part of the body is rather slender. There are from thirteen 

 to fourteen scales m a transverse series descending from behind the 

 adipose fin forwards to the lateral line. 



Upper parts brownish or greenish olive ; sides of the head with 

 round black spots ; sides of the body with more or less numerous X- 

 shaped, sometimes rounded brown spots. Dorsal and adipose fins 

 with numerous smaU brown spots; extremity of pectoral Ught 

 blackish ; dorsal and anal without black or yellow margin 



A nonmigratory species, inhabiting Loch Leven and other lakes of 

 southern bcotland and of the north of England. 



a-<l. Skins : from 14 to 18 inches long. Loch Leven. From Mr 

 Parnell's Collection. 



e, f. Thirteen inches long. Loch Leven. Presented by Sii- J. Rich- 

 ardson. 



g-n. Females, from 12 to 18 inches long. Purchased, said to be 

 trom Loch Leven. Caught in April. Cfec. pyl. 65, 63, 60, 54, 

 54, 53, 49 ; Vert. 58-59. These specimens have the pyloric 

 appendages fewer m number than is generaUy stated ; yet these 



