Solarium Perpectivum (Bottom View)

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“The Staircase-shell is recognized by its deep umbilicus, wide and funnel-shaped, in the interior of which may be seen the little teeth which follow the edge of every turn of the spiral up to the top. The diameter of this shell is sometimes two and a half inches.”


Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)


TIFF (full resolution)

2400×2134, 1.6 MiB

Large GIF

1024×910, 242.4 KiB

Medium GIF

640×569, 123.8 KiB

Small GIF

320×284, 43.9 KiB