. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 182 NEW YORK STATE MUSEUM Genus strophonella Hall [Ety.: arpofos, turned around] (1879. Ar. Y. state mus. nat. hist., 26th an. frep't, p. 153; Hall & Clarke. 1892. Pal. N. Y. v. 8, pt 1, p. 290) Shells with the form and structure of Stropheodonta, but with the relative convexity of the valves reversed. Strophonella striata Hall (Fig. 87) Leptaena striata Hall (1852. Pal. N. Y. 2:259, pi- 53, % 7) Distinguishing characters. Semielliptic, almost llljl flat, hinge line equal to or a little longer than width of sh
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 182 NEW YORK STATE MUSEUM Genus strophonella Hall [Ety.: arpofos, turned around] (1879. Ar. Y. state mus. nat. hist., 26th an. frep't, p. 153; Hall & Clarke. 1892. Pal. N. Y. v. 8, pt 1, p. 290) Shells with the form and structure of Stropheodonta, but with the relative convexity of the valves reversed. Strophonella striata Hall (Fig. 87) Leptaena striata Hall (1852. Pal. N. Y. 2:259, pi- 53, % 7) Distinguishing characters. Semielliptic, almost llljl flat, hinge line equal to or a little longer than width of shell; fine, rounded, radiating surface striae, which increase by implantation; fine concentric Fig. 87 Strophonella striata Striae. Found in the middle and upper Rochester shale at Niagara. Strophonella (?) patenta Hall (Fig. 88). Leptaena pat- en ta Hall (1852. Pal. N. Y. 2:60, pi. 21) Distinguishing characters. Wider than high; hinge not auriculate;. Fig. 88 Strophonella (?, patenta with enlarged surface features fine unequal radii crossed by finer concentric striae; inner surfaces of valves thickly covered with sharp points. Found in the Clinton limestones and lenses and doubtfully in the middle Rochester shales at Niagara. Genus plectambonites Pander [Ety.: -Xszrog, plaited; ;ov, beak] (1830. Beitrage sur Gcognosie des Russ. Rciches. p. 90. Hall & Clarke, 1892; Pal. N. Y. v. 8, pt 1, p. 236, 295) Shells small, concavo-convex; surface striae very fine, often alter- nating in size; hinge line making greatest width, extremities often. 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 Buffalo Society of Natural Sciences. Buffalo, N. Y. : Buffalo Society of Natural Sciences
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