. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 694 PISCES. [CTE. —I)AC. porrfctuB, Cope, 1878, Pal. Bull. No. 29, in Proc. Am. Pbil. Soc, vol. 17, p. 627, Ptfrmian. pjsilliis, Cope, 1878, PhI. Bull. No. 26, in Pnie. Am. Phil. Soc, vol. 17, p. 191, Permian. reticulatuB,Newberry, 1876, Ohio Pal., vol. 2, p. 60, Coal Meas. serratns, Newberry, 1875, Ohio Pal., vol. 2, p. 59, Coal Meas. Ctenoi'etalus, Agassiz, 1869, Catal. Fobs. Fish, Collection of Earl of Enniskil
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 694 PISCES. [CTE. —I)AC. porrfctuB, Cope, 1878, Pal. Bull. No. 29, in Proc. Am. Pbil. Soc, vol. 17, p. 627, Ptfrmian. pjsilliis, Cope, 1878, PhI. Bull. No. 26, in Pnie. Am. Phil. Soc, vol. 17, p. 191, Permian. reticulatuB,Newberry, 1876, Ohio Pal., vol. 2, p. 60, Coal Meas. serratns, Newberry, 1875, Ohio Pal., vol. 2, p. 59, Coal Meas. Ctenoi'etalus, Agassiz, 1869, Catal. Fobs. Fish, Collection of Earl of Enniskillen, in Geo. Mag., vol. 6. [Ety. klenoB, comh \ petalos, broad, full-grown.] The serrated or denticulated crest distin- guishes it from Petalodus, whiih it much resembles, and to wliich it bears about the same relation as PetHludus does to AntlioduB. Type C. serratus. bellulus, St. John & Worthen, 1875, Geo. Sur. III., vol. 6, p. 398, St. Louis Gr. liniiituius, St. John & Worthen, 1875, Geo. Sur, 111., vol. 6, p. 399, Kaskas- kia Gr. medius, St. John & Worthen, 1875, Geo. Sur. 111., vol. 0, p. -lOO, Kaskaskia Gr. occidentalis, St. John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 401, Coal Meas. vinosus, St. John & Worthen, 1875, Geo. Sur. 111., vol. 6, p. 396, Keokuk Gr. Ctenoptychiub, Agassiz, 1843, Kecherches sur les Poissons Fossika, t. 3, p. 99. [Ety. klenoi, comb; plyclie, wrinkle.] Teeth small, highly poliishfd, strongly compressed, rounded or obtusely pointed; edge divided into several strong denticulations; base of crown with a few imbricating folds of ganoine; bony root, oblong, flattened in the same direction as the crown. Type C. apicalis. cristatus, Dawson, 1868, Acad. Geol., p. 209, Coal Meas. FiQ. 1120. — Cteno- petaluB Occident- alls. Coucave Fig. 1121.—CtenoptycIiiuKcristatus. Natural size nud mugnifled. digitatus, Leidy, 1856, Trans. Am. Phil. Soc, vol. 11, St. Louis Gr. pertenuis, St. John & Worthen, 1875, Geo. Sur. III.
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