. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 705 Pleu. Acad. Nat. Sci. Phila. Vol. 8, Trenton and Hudson river for- mations. Hall., Pal. N. Y. Vol. 1,1847, page 305, plate 83,lig. 4 a^ small, showing back of spire and expansion of last whorl; J, enlarged surface to show alternating larger and smaller carinas (keels) crossed by the oblique fine striae; c, larger specimen; ^, another with aperture entire on the outer mar- gin ; g, base. Resembles P. Ucarinata of the Trenton forma- tion^hMt differs essenti
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 705 Pleu. Acad. Nat. Sci. Phila. Vol. 8, Trenton and Hudson river for- mations. Hall., Pal. N. Y. Vol. 1,1847, page 305, plate 83,lig. 4 a^ small, showing back of spire and expansion of last whorl; J, enlarged surface to show alternating larger and smaller carinas (keels) crossed by the oblique fine striae; c, larger specimen; ^, another with aperture entire on the outer mar- gin ; g, base. Resembles P. Ucarinata of the Trenton forma- tion^hMt differs essentially in having the whorls angulated only on the center. It is also always shorter than the Trenton P. uniungulata. It is found in the higher beds of the Hudson river shale at Turin and Rome, N. Y.—Reported found in Pennsylvania by H. D. Rogers, Geol. Pa. 1858.—Z/7 J. Pleurotomaria bonharborensis, Cox, Geological Survey ^ii,:f^ ^ of Kentucky, Vol. 3, page 567, plate 8, fig. 4, Ccx. •^'is-^'J^t^ enlarged; 4 a, natural size. Abundant in the roof shales of the Bonharbor coal No. 11, ^^ ^,^ ^-» Davies Co., Ky. Upper coal measures XY, Pleurotomaria calcifera, Billings. Geology of Canada, 1863, page 117, fig. 27 a, the usual form of the shell; 27 5, a variety with the spiral depressed; 27 c, view of the spiral. Calciferous sand- stone, II a, Pleurotomaria calyx, Billings. Geology of Canada, 1863, page 132, fig. 62 a>, view of the spiral; 62 J, side view; <?, smaller specimen. Cha- zy limestone, III, capillaria, Conrad, Jour. Acad. Nat. Sc. vni c 2 Phila. 1842,Vol. 8, p. 271, pi. 16,fig. 11.—Hall, Pal. H/i//^^^ N. Y. Vol. 5, part 2, pi. 70, figs. 18 to 21; 15th Annual Report, New York, p. 45, pi. 5, fig. 2; from the Hamilton coarse shales. (A similar but ^- slenderer and more closely striated variety is. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of
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