Giant Keyhole Limpet

This keyhole does not lock or unlock any door.  This keyhole is a living animal from the sea.  Megathura crenulate is the scientific name for the Giant Keyhole limpet.   The Giant Keyhole limpet's shell length can grow up to four inches yet the animal itself is always too big for its shell, and extends beyond the shell.  The shell is usually light tan in color, and has a rough texture.  The limpet itself is much different in color than the shell.  The mantle may be gray with stripes and/or spots with the shade of most any darker color, and the large muscular foot of the limpet is bright yellow.  Limpets are related to sea snails, abalones, mussels, and sea hares. The limpet eats algae tunicates, and sponges by scraping them off rocks with their radula. Giant keyhole limpets are really amazing animals!

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