. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. 238 valve convex, with ;i moderately high area, divided by an open delthyrium. The teeth arise from the bottom of the valve as two erect divergenl crests. Brachial valve slightly concave, or nearly flat, with ;i low area, a prominent convex chilidium, and a large cardinal process bilobed at, the sum- mit. The brachidium consists of two slender descending lamellae, which unite near the middle of the valve with a sharp, thin median septum, which, towards the beak, passes into ;i low media
. Bulletin of the Buffalo Society of Natural Sciences. Natural history -- New York (State); Natural history. 238 valve convex, with ;i moderately high area, divided by an open delthyrium. The teeth arise from the bottom of the valve as two erect divergenl crests. Brachial valve slightly concave, or nearly flat, with ;i low area, a prominent convex chilidium, and a large cardinal process bilobed at, the sum- mit. The brachidium consists of two slender descending lamellae, which unite near the middle of the valve with a sharp, thin median septum, which, towards the beak, passes into ;i low median ridge. Surface of both valves plicated. Tropidoleptus carinatus. (Conrad.) (Fig. 150.) (Pal. \. Vol. IV., p. 407. PI. LXII.) Dist inguishing Characters.—Strophomenoid outline; broad, simple, rounded plications, wider than the inter- spaces; broadly sub-carinate center of pedicle valve, caused by the greater width and prominence of the central plica- tion: longitudinally striated, convex chilidium of brachial valve; hue undulating concentric surface striae, and occa- sional coarser imbricating lamella?.. 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. : The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectnaturalhistory, booky
