. The Conchologists' exchange. Mollusks. THE NAUTILUS, XXXIl. PLATE VI. 1-4. PRATICOLELLA CAMP! CLAPP & FERRISS. X5. 5-7. " GRLSEOLA PFR,. YOUNG. X5. 8-10. STYLOBATES yENEUS DALL. SLIGHTLY OVER Vi NAT. 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 Averell, William D. Philadelphia, Wm. D. Averell

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188