. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 217 well-marked muscular area occur. The bi'achial valve is always couvex at the beak, below which it becomes flattened or slightly concave, or else continues with more or less uni- form arcuation. Area nai'row; cardinal process long and narrow, bifurcated at the free end. Brachidium consists of loosely coiled spirals, similar to Spirifer. AxMBOccELiA UMBOXATA. (Courad.) (Fig. 125.) (Pal. N. Y., Vol. IT., p. 259, PI. XLIV.) Distinguishing C/ia/victe/vs'.—Plano-convex, almost hemi- spherical contour: strong, distin
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 217 well-marked muscular area occur. The bi'achial valve is always couvex at the beak, below which it becomes flattened or slightly concave, or else continues with more or less uni- form arcuation. Area nai'row; cardinal process long and narrow, bifurcated at the free end. Brachidium consists of loosely coiled spirals, similar to Spirifer. AxMBOccELiA UMBOXATA. (Courad.) (Fig. 125.) (Pal. N. Y., Vol. IT., p. 259, PI. XLIV.) Distinguishing C/ia/victe/vs'.—Plano-convex, almost hemi- spherical contour: strong, distinct and continuous mesial. 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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