. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. No. 109.] 141 Strophomena ( Strophodonta) textilis (n. s.). Sheisl very thin, seraioval, 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. Surfa


. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. Science. No. 109.] 141 Strophomena ( Strophodonta) textilis (n. s.). Sheisl very thin, seraioval, 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 striae, which increase by interstitial addition : spaces between the striae marked by extremely fine 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 strias, while the concentric strife 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 Slrophomena in- terstitialis ( 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 New York State Museum. Albany, Regents of the University of the State of New York


Size: 1549px × 1613px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853