Nautilus Shell Small 238×320 Medium 476×640 Large 761×1024 Download TIFF Original 1784×2400 | (1.7 MB) Description "Section of shell of Nautilus." -Thomson, 1916 Keywords mollusc, mollusk, nautilus shell section Galleries Squid, Octopus, and Nautilus Source: J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)
