. The Canadian journal of industry, science and art. . Fig. 88. Fig, 89. Fig. 90. Fig. 88.—Stricklandia lens, dorsal view. Fig. 89. The same side view, shewing that the valves are nearly equal in size. Fig. 90.—Pantamerus Knightii, side view shewing the great di£Ference in the size of the valves. This genus ranges from the Middle Silurian up to the Devonian. It includes three English species long known under the names of Pentamerus lens, P. liratus, and P. loevis. In Canada we have these three in the Clinton group at Anticosti, and also Stricklandia Gaspensis, (Niagara group) Gaspe, S. Canaden
. The Canadian journal of industry, science and art. . Fig. 88. Fig, 89. Fig. 90. Fig. 88.—Stricklandia lens, dorsal view. Fig. 89. The same side view, shewing that the valves are nearly equal in size. Fig. 90.—Pantamerus Knightii, side view shewing the great di£Ference in the size of the valves. This genus ranges from the Middle Silurian up to the Devonian. It includes three English species long known under the names of Pentamerus lens, P. liratus, and P. loevis. In Canada we have these three in the Clinton group at Anticosti, and also Stricklandia Gaspensis, (Niagara group) Gaspe, S. Canadensis (Clinton group) Thorold, C W., S. brevis, perhaps a variety of the latter (Clinton) Anticosti. Stricklandia elongata is the only species known to me in the Devonian rocks. Stricklandia elongata. (Vanuxem.) Pentamerus elongatus—(Vanuxem.) Geology of the Third District of the State of New York, p. 132 1842. Pentamerus elongatus.—(Hall.) Geology of the Fourth District of the State of New York, No. 34, Fig. 1. Meganteris elongatus.—(Hall.) Tenth Annual Report of the Regents of the University of the State of New York, p. 123. 1857. Renssel^ria elongata.—(Hall.) Tivelfth Annual Report of the Regents of the University of the State of New York, p. 38. October, 1859. Description.—Elongate-oval, somewhat variable in form, the sides convex, as in the above figure, or nearly straight and parallel, and in the latter case the front truncated or nearly straight. Valves varying in the amount of their convexity, sometimes nearly cylindrical above. 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 Canadian Institute. Toronto : Canadian Institute
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