Lepidotus occidentalis, Leidy.

Plate XIX, fig. 3.

Lepidotus occidentalis, Leidy, 1860. Trans. Amer. Philos. Soc. Extinct Vertebraba from the Judith River and Great Lignite formations of Nebraska, pi. 11, figs. 20-23.

Numerous scales, from the " bad lands " of Eed Deer river, are apparently not distinguishable from those described by Leidy under the name Lepidotus occidentalis .

The scale figured is fairly representative of those in the collections, as regards form and size. The lozenge-shaped, enamelled outer surface is smooth and shiny, with generally a few small, puncture or pit-like depressions scattered toward the centre; a few observed edge. Length of specimen figured 18-5 growth lines are generally parallel to its mm., greatest thickness 3*0 mm.

Belly Eiver series, Eed Deer river, 1898 and 1901.

Similar scales were collected by Dr. Gr. M. Dawson on Belly river, N.W.T. (Nos. 40 and 41), in 1881, and by Mr. T. C. Weston, at Eoss coulee, near Irvine on the line of the C.P.E., in 1884.