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I.—On a New Specimen of the Cretaceous Fish Portheus Molossus, Cope

  • Arthur Smith Woodward

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Several nearly complete skeletons of the primitive teleostean fish Portheus molossus are now known from the Chalk of Kansas; but none is better preserved than a remarkable trunk, nearly 12 feet in total length, lately obtained for the British Museum by Mr. Charles H. Sternberg. The specimen is shown, of about of the natural size, in the accompanying Plate XVIII, where it is seen mounted with the head of another fish of the same proportions. All the bones remain embedded in the matrix exactly as they were found, and there is no restoration beyond slight repairs.

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page 529 note 1 Crook, A. R., Palœontographica, vol. xxxix, p. 109, fig. 1, 1892; Osborn, H. F., Bull. Amer. Mus. Nat. Hist., vol. xx, pp. 377–81, pl. x, 1904; McClung, C. E., Kansas Univ. Science Bull., vol. iv, p. 243, pl. xii, 1908.

page 529 note 2 Hay, O. P., Zool. Bull., vol. ii, p. 47, fig. 12, 1898; corrected in Bull. Amer. Mus. Nat. Hist., vol. xix, p. 56, 1903.

page 530 note 1 Hay, O. P., Zool. Bull., vol. ii, p. 51, figs. 15, 16, 1898.

page 530 note 2 See figures by Hay, O. P., Zool. Bull., vol. ii, p. 48, figs. 13, 14, 1898 (in which the hæmal arch is described as neural, and vice versa).

page 531 note 1 Cope, E. D., Vert. Cret. Form. (Rep. U.S. Geol. Surv. Territ., vol. ii, 1875), p. 192, fig. 9.

page 531 note 2 Woodward, A. S., Foss. Fishes English Chalk (Mon. Pal. Soc, 1907), p. 101, fig. 28.

page 531 note 3 Heckel, J. J., Denkschr. k. Akad. Wiss. Wien, math.-nat. Cl., vol. i (1850), p. 203. See also Woodward, A. S., Foss. Fishes English Chalk, p. 99, fig. 25.

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