. Catalogues of the Silurian fossils of the island of Anticosti, with descriptions of some new genera and species. Paleontology; Paleontology. 90 fourth septum, 20 lines ; lateral, 21 lines. Grimsby ; Niagara formation. J. Pettit. This species is closely allied to iS. Janus, but diflfers in having the aperture proportionally Avider on the lateral diameter, and in the outline of the body of the shell on the dorsal aspect—straight or concave instead of convex. The two species are closely allied, and may yet be united by intermediate Fig. 28. F. 28.—The upper figure represents the apertur
. Catalogues of the Silurian fossils of the island of Anticosti, with descriptions of some new genera and species. Paleontology; Paleontology. 90 fourth septum, 20 lines ; lateral, 21 lines. Grimsby ; Niagara formation. J. Pettit. This species is closely allied to iS. Janus, but diflfers in having the aperture proportionally Avider on the lateral diameter, and in the outline of the body of the shell on the dorsal aspect—straight or concave instead of convex. The two species are closely allied, and may yet be united by intermediate Fig. 28. F. 28.—The upper figure represents the aperture of *S'. Janus in outline : the lower figure the aperture of *S'. Heros. CYSTIDE^. Genus, Apiocystites, Forbes. A. Canadensis, n. sp.—Small, ovate, sub-pentagonal, rounded at the summit, truncated at the base. Arms five, four of them extending downwards to within one-fifth of the whole length from the base; the fifth a little shorter than the others. Mouth ? a little above the mid- length, apparently closed by numerous small plates. The two upper. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Geological Survey of Canada; Billings, E. (Elkanah), 1820-1876. Montreal, Dawson brothers; London, New York [etc. ] Baillière
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Keywords: ., bookaut, bookcentury1800, bookdecade1860, booksubjectpaleontology
