OSMERUS.] PISCES (OSSEI) MALACOPT. 429 



rays of the pectorals, and the whole of the anal and ventrals, bright 

 red. 



Whether this species be found on the Continent, or be the same as any 

 of those described by foreign authors, it is not easy to determine, owing 

 to the great confusion which prevails in this genus. I have, however, 

 little hesitation in considering it as the S. Salvelinu-s of Donovan, though 

 not of Turton and Fleming, who appear to have confounded it with the 

 Red Charr of Pennant, which is only a variety of the last species. The 

 same may be said of Willughby, who has comprised them both under the 

 title of Umbla minor, Gesn.* That it is distinct from the S. Umbla 

 of this work (the S. alpinus of most English authors) no one, I con- 

 ceive, can doubt, who has had an opportunity of comparing the two. 

 My examination was made from specimens in the possession of Mr. 

 Yarrell, who obtained them from Corsygiddel Lake near Barmouth. 

 According to Donovan, it is found in the Waters of Llyn Quellyn, one 

 of the alpine lakes on the west side of Snowdon ; he adds, that formerly 

 it was also met with in the Llanberris Lake, on the opposite side of the 

 mountain, but that of late years it has disappeared in the locality last 

 mentioned. The species appears to be confined to Wales, in which 

 country it is said to be called Torgoch, a Welch term signifying Red- 

 belly. 



GEN. 41. OSMERUS, Art. 



111. O. Eperlanus, Flem. (Smelt.) 



O. Eperlanus, Flem. Brit. An. p. 181. Eperlanus, Will Hist. Pise. 

 p. 202. tab. N. 6. f. 4. Salmo Eperlanus, Linn. Syst. Nat. torn. i. 

 p. 511. Block, Ichth. pi. 28. figs. 1, 2. Don. Brit. Fish. vol. n. 

 pi. 48. Turt. Brit. Faun. p. 104. Smelt, Penn. Brit. Zool. 

 vol. m. p. 313. pi. 61. no. 151. Id. (Ed. 1812.) vol. in. p. 416. 

 pi. 72. 



LENGTH. From eight to ten, rarely twelve, inches. Pennant mentions 

 one which measured thirteen inches. 



DESCRIPT. (Form.) Elongated; the back straight, and in the same 

 line with the profile : greatest depth one-seventh of the entire length ; 

 thickness rather more than half the depth : head small, one fifth of the 

 entire length, somewhat conical: lower jaw longest, curving upwards 

 when the mouth is closed : gape wide, extending to beneath the eyes : 

 maxillary teeth sharp, but very fine ; those in the lower jaw curved, and 

 much longer ; two rows of teeth on each palatine ; also some very strong 

 long curved teeth on the tongue and front of the vomer : eyes large : 

 gill-cover produced posteriorly into an obtuse lobe : lateral line at first 

 slightly descending, but afterwards straight : scales small, deciduous : 

 dorsal commencing exactly half-way between the extremity of the upper 

 jaw and the end of the fleshy part of the tail ; its height nearly twice 

 its length, and about equal to, or rather less than, the depth of the body ; 

 third ray longest; first two rays simple, the others branched; the last 

 two from one root: adipose small, a little nearer the caudal than the 

 dorsal: anal commencing a little beyond the tip of the reclined dorsal, 

 much longer than that fin, and extending beyond a vertical line from the 

 adipose ; first ray very short ; fourth longest ; first three simple, the rest 

 branched : the last two from one root : caudal deeply forked : pectorals 



* Hist. Pise. p. 1%. 



