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Show 226 l'ISCES. distinguished by a soft promine?ce at the. end of the snout, From the North Sea and the Ba.lttc, where 1t pursues the Her- . It 1's also taken in the lake of Haarlem, &c.( l) rmg. c. marmnula; Salmo marcenula, Bl., ~8, f. 3; S. albula, Ascan. pl. xxix. Strongl~ characterized by the lower jaw, which pro· jects beyond the upper one.(2) . . . The others have an obtuse snout, as tf truncated; 1t 1s extremely difficult, however, to assign to them precise characters. Such are c. marmna; Sahno marcena, Bl., 27. From the lakes of Bran· debourg; its snout, although obtuse, extends beyond the mouth. c. Wartmanni; Salmo Wartmanni, Bl., 105. From the lakes of Bourget, Constance, the Rhine, &c. The snout is truncated even with the front of the mouth, the head is shorter in pro· portion, and the form longer and more slender. C. Jera, Jurine, Mem. de la Soc. Phys. of Geneva, III, part I, pl. vii. From the lake of Geneva, and some others; it is higher than the Wartmanni, and has larger fins. C. hyemalis, Jurine, lb., pl. viii. From the lake of Geneva, where it is found in the winter only; its head is thicker and its fins are larger in proportion than in the fera. C. palrea, Cuv. from the lake of Neuchatel; higher than any of the preceding 'species, particularly at the nape, and deeply coloured. C. sikus, Cuv.; Ascan., pl. xxx, uuder the name of Lavaret. From the rivers of Norway; the snout is prominent as in the marocna, but the body is narrowet' and browner.(3) ARGENTINA, Lin. The mouth small and jaws without teeth, as in Thymallus, but the mouth is depressed horizontally; the tongue is armed, like that of the Trouts, 8tc., with strong hooked teeth, and there is a trans· verse range of small ones before the vomer. There are six rays in (1) The genus TmFTETLONoTus, Lacep., is founded on a bad figure of this Jfouting sent to Rondelet (Ronclel., 195), to which, by some mistake, three dor· sals had been given-that genus must consequently be suppressed. The ve.ry improper name pf .lllbttla rwbilis was transferred to it by Schoenefcld, and Lin· nreus and Artecli confounded it with the Coregonus, an example followed by Bloch. The Salmo t!tymallus latus, Bl., 26, appears to be a variety of it in the spawning season. (2) Add Salmo clupeoi'des, Pall. . (3) Add, Salmo situs, A.scan., XXIV;-Coregonus albus, Lesueur, Ac. Nat.Sc. Phil., I, p. 35;-Cor. quadrilateralis, Richardson, Franklin,s Voy., pl. xxv; f. 2;Salmo pelcd, Pall. MALACOPTERYGII AHDO)ITNALES. 227 the branchire, and the intestines differ but slightly fl'om those of the T1·out. .fl. sphy1·cena, L., Cuv.; Mem. du Mus I x· '['h 1 . . ., ' t. e on y spe-ctes known; Its natatory bladder is extremely tl · k 1 • l . uc , anc smgu-lar y loaded wtth that silvery substance (na . ) h' 1 • • • • · Cl e W lC 1 IS SO remarka~le m fish; 1t 1s employed fot· colouring- peal'ls. The stomach IS remat·kable for its black colour (1) F. h · tert•anean. · 1om t e Mech- Arte~i and several of his successot·s have united all the Salmoni-des, whtch have not more than four ot· five rays in tl1 e 1) ranc 1n •r e, • 1n the subgenus CHARACINus; but there is a sufficient ]'ffi • · 1 • • • • <. 1 e1 ence 111 t 1eu· fi.g u. re. , and partrcula!'ly m their teeth ' to warrant a s t1'l l gl'eater sub-dms. ron. They al.l , however, have the numerous C.","._ ca o f t 11 c pre-cedmg S.almons, with the bladder of the Cyprinid·"' h' 1 · I' 'd • • .._, W lC 1 lS C lYI eel by a stt·angulatton. The lmo-ual teeth of the 'f t 1 <> rou are a ways wanting. We subdivide them as follows: CuRIMATA, Cuv. The whole external form of a Thymallus; small mouth, the first dorsal ab. ov. e the. ventt·als, &c. Some of them 1·esemb1 e cer t am· Thdy malh m their teeth which arc only visible with tl· 1 1 · 1e g ass, an mere y differ fl'om them in the number of their b h' 1 rays.(2) ranc 1a . Others h~ve a range of teeth in each jaw, which are trenchant, dmcted obliquely forwards, the anterior ones longest, and, in a word, comp~rable to those of a Balistes.(3) From the river~ of South Amen ca. (1) This fish, which is most certainly the .flrgentina of Willughby 229 d consequently that of Artedi and Linnre us, always has a second adipos: dOJ·;at:s was observed by Br unm· c1 1 , 1c tl1 . mass., 79; I. t should therefore have been plac' ed ~~ong the Salmons. The .8.1-gent. maclmata, Forsk., is the Elops saurus· this is ~so, m?st probably, the case with the .8.1-gent. carolina of Lin., although ~'ltesby .as ~mttted the dorsal in the fig. cited, Car., II, xxiv. The Argentina of ~rono v~us I;:n .llnclwvy, and that of Pennant a Scopelus,-8erpe of Risso. The .flrgent. g 78~ nta, Forsk., is a pat'ticular genus, the Butirinus of Commerson. . len~ A Sa~~~nttelus, Bl., 380;-S. tmimawlatus, Bl., 381, 3;-8. tamizerus, Va· mate~~ mb., Zool. Obs., II, p. 166;-8. cU1·ima, Cuv., Marcgr., 156;-Cttri- 8 c . ~ Quoy et Gaym, Voy. de Freyc. Zool., pl. xh-iii, £ 1;-and probably a~/i~~;X es, G:onov., Zooph., No. 378. They a.t·e the PAcu, Spix, XXXVHI, tll" • His ANonus, XL and XLI, only differs in the mouth which is ra· <!l' more cleft. ' (3) Salmofasciatus, lll., 379;-S. Fridericii, ld., 378. \ |
