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Show 100 PISCES. Two species inhabit the fresh waters of Europe; their flesh is light and agreeable. .JJ.spro vulgaris, Cuv.; Perea asper, L.; Bl. 107, 1 and 2; Cuv. and Val. II, xxvi. From the Rhone and its tributaries; greenish. three or four blackish vertical bands; eight spines in the ' first dorsal • .11. Zingel; Perea Zingel, L.; Bl. 105. From the Danube; larger than the vulgaris, but similar as to colours; thirteen spines in the first dorsal. This division also comprises some fishes whose singulal'ity of conformation gives rise to several subgenera. HuRo, Cuv. and Val. All the characters of a true Perch, except that the preoperculum is not dentated.( 1) ETELis, Cuv. and Val. All the characters of a true Perch; hooked teeth in the jaws, but not as in the Lucio-Perea, in the palate.(2) NIPHON, Cuv. and Val. Teeth as in the Perch, and strong spines at the lower part of the preoperculum, and on the operculum.(3) ENoPLosus, Lacep. Characters of the Perches; angle of the preoperculum more deeply dentate; the body much compressed, and together with the two dorsals, of great vertical height. ( 4) DIPLOPRION, Kuhl and Van Hassel. All the characters of a Perch; body compressed; a double den· tated border on the lower part of the preoperculum, and two spines on the operculum.(5) APoGoN, Lacep. Body short, furnished, as well as the opercula, with large scales that are easily dislodged; the two dorsals very separate, and a double (1) Hwo nigricans, Cuv. and Val., II, pl. xvii. (2) Etelis carbunculus, lb. pl. xviii. (3) Niphon spinosus, lb. XIX. (4) Erwplosusarmatus, lb. XX, or Ohretodon armatus, J. White. (5) Diploprionfasciatum, Cnv. and Val. II, xxi. ACANTHOPTF.RYGll. 101 dentated border on the prcopcrculum. They are small fishes, and genet·ally red. One of them, .flp. rex mullorum, Cuv.; Mullus1:mberbis, L.; commonly called Roi des Rougets, Cuv. Mem. du Mus. I, 336 and pl. xi, f. 2, three inches long; red; a black spot on each side of the tail· is found in the Mediterranean.( 1) ' CHEILODIPTERus, Lacep. All the characters of the Apogons, differing only in the fangs or long and pointed teeth with which the jaws are armed. They inhabit the Indian seas, are small, and generally mat·ked with longitudinal streaks.(2) PoMATOMus, Riss. Two separate dorsals like the Apogons, and the scnles dislodged with the same facility; but the preoperculum is simply striate, the operculum emarginate, and the eye enormous; very small crowded teeth (en velours ras ). Pomat. telescope, Risso; Cuv. and Val. II, xxiv. The only species known; it inhabits the Mediterranean, and is excessively rare. A second subdivision comprises the Percoides with two dorsal fins, and long and pointed teeth mingled with the small and crowded ones. AMBASsis, Commers. Nearly the same form as that of the Apogons; a double notch towards the lower part of the preoperculum; the operculum terminating in a point. They are distinguished from the Apogons by the contiguity of their two dorsals, and by a spine before the first. Strictly speaking, they do not perhaps belong to this family, for there are no appendages to the pylorus. .JJ. (~) This is the .llpogon rouge, La.cep.; the Oorpulus, Gesner, p. 127, 3; the mta of Gronovius, Zooph., IX, 2; the Centropomus rubens, Spino!., An. Mus. :X:, XXVIII, .2, the Dipterodon ruber, Rafin. Caratt. No. 715, &c. The Dipterodon ~exacanthe, Lacep. III, pl. iv, f. 2, and the Ostorinque.fteuriet~, Id. Ill, xx.xii, 2, also elong to this genus. For the numerous species of this genus foreign to Europe, see Cuv. and Val., II, 151, et seq. (2) Cheilod. 8-vittatu.s, Cuv., Lacep. III, xxxv, 1; which is his 0/teilod. raye, ~· P· 543, and his Centropome macrodon, IV, 273.-Cheilod. arabicr.~a (Perea meata, Forsk), Cuv. and Val., II, pl. xxiii.-Ch. 5-lineatus, lb. p. 167. \ |