. Bulletin - New York State Museum. Science. 204 NEW YORK STATE MUSEUM anterior ear smooth, but on the posterior slope they are continued to the hinge. The posterior wing is cancellated and the cardinal line more strongly striate. The left valve which is less convex than the other has the radial riblets developed only on the median area, both anterior and posterior wings being smooth save on the. 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
. Bulletin - New York State Museum. Science. 204 NEW YORK STATE MUSEUM anterior ear smooth, but on the posterior slope they are continued to the hinge. The posterior wing is cancellated and the cardinal line more strongly striate. The left valve which is less convex than the other has the radial riblets developed only on the median area, both anterior and posterior wings being smooth save on the. 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; New York State Museum. Albany : New York State Education Dept
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
