. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BLAKE MOLLUSCA. PLATE XXXVI. MaConnell del Photo. Lith by L. S. Punderson & Son New Haven, Conn. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1889