. British and Irish Salmonidæ. er of cascal appendages, which have been advanced as acharacter which may materially aid in discriminating a species, I have already(p. 22) given reasons against accepting this in respect to our fresh-water trout,and will adduce further evidence under the head of the respective races. While it must not be supposed that because British anadromous salmonoidsgenerally possess more crecal appendages than are normally found in our indi-genous and so-called non-migratory trout, that such is everywhere the case. Itseems that forms in some large lakes have them in great
. British and Irish Salmonidæ. er of cascal appendages, which have been advanced as acharacter which may materially aid in discriminating a species, I have already(p. 22) given reasons against accepting this in respect to our fresh-water trout,and will adduce further evidence under the head of the respective races. While it must not be supposed that because British anadromous salmonoidsgenerally possess more crecal appendages than are normally found in our indi-genous and so-called non-migratory trout, that such is everywhere the case. Itseems that forms in some large lakes have them in great numbers : thus theSaliiio inarsilii, from the lakes in Upper Austria, has up to 100; S. lacjistris,from Lake Constance, which Siebold considers the same species, has up to ve7ieniensis, Giinther, from Sweden, which Malm gives, I believe, correctly, asa variety of the common brook trout, has at least G2, while our larger forms oflake-trout, , have been found possessing a few in excess of those whichinhabit DEATI-NET BEING ON SUOEE. 149 SEA TROUT. A. Northern Sea Race. Salmon-trout, Plate iv, fig. 1. Trutta salmonata, Sctonev. Icli. p. 65 ; Willoughby, p. 193 ; Ray, Synopsis,p. 63. Salmonata, Sibbald, Scot. no. 25. Truttaceum cincrens ant griseiis,Willoughby, p. 193; Ray, p. 63. Salnio trutta, Linn. Fauna Succ. p. 347;Gronov. Zooph. no. 367. Salmo, no. 3 and 5, Artedi, Synon. pp. 23, 24, Genera,p. 12, and Species, p. 51; Klein, Pise. Miss. V, p. 16, t. v, f. 1. Sea-trout,Pennant, Brit. Zool. (Ed. 1776) iii, p. 296 (Ed. 1812) iii, jj. 347. Bull-trout,Low, Fauna Oread, p. 222. Salmo trutta, Linn. Syst. Nat. i, p. 509 ; Blocb, Fiselie Deuts. i, p. 143, t. xsi;Bl. Scbn. p. 399; Gmel. Linn. p. 1366; Bonn. Ency. Icb. p. 159, pi. Ixv, f. 263 ;Turton, Brit. Fauna, p. 103 ; Risso, Icb. Nice, p. 323; Flam. Brit. An. p. 180 ;Nilss. Skand. Fauna, p. 406 ; Jenyns, Manual, p. 423 ; Kroycr, Dan. Fiskc, ii,p. 582 ; Jardine, Salmonidaa, pi. iii (half grown) ix, x,
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