. Annual report of the Regents of the University on the condition of the State Cabinet of Natural History, with catalogues of the same. State Cabinet of Natural History (N. Y. ); Science; Museums. No. 109.] 141 STROniOMENA ( SlROrilODONTA) TEXTILIS ( 11. S.). Shell very thin, semioval, sometimes longer than wide, much compressed; hinge about equal to the greatest breadth, nearly rectangular at the extremities : dorsal valve scarcely concave : ventral valve Hat, or very slightly convex; area linear, striated vertically, and marked by a narrow linear callosity in place of the foramen. Surface ma
. Annual report of the Regents of the University on the condition of the State Cabinet of Natural History, with catalogues of the same. State Cabinet of Natural History (N. Y. ); Science; Museums. No. 109.] 141 STROniOMENA ( SlROrilODONTA) TEXTILIS ( 11. S.). Shell very thin, semioval, sometimes longer than wide, much compressed; hinge about equal to the greatest breadth, nearly rectangular at the extremities : dorsal valve scarcely concave : ventral valve Hat, or very slightly convex; area linear, striated vertically, and marked by a narrow linear callosity in place of the foramen. Surface marked by slender distant elevated radiating stria?, which increase by interstitial addition : spaces between the stride marked by extremely line radiating lines, which are crossed by minute closely arranged concentric strise. This shell differs from the preceding in its nearly flat ventral valve and less prominent radiating striae, while the concentric stria; are very con- spicuous on the surface between the coarser ones. There are from four to twelve finer radiating striae between the coarser ones, which become less conspicuous towards the beak. The alternations of the striae are not unlike those of Strophomena iii- terstilialis ( Phillips), and (Conrad); but the flattened. 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 State Cabinet of Natural History (N. Y. ); University of the State of New York. Board of Regents. Albany, N. Y. : University of the State of New York
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectm, booksubjectscience
