Moon Crab

Sun, sand and surf are all that comes to mind when planning a trip to the beach. These three elements almost invariably cloud out everything else. If anything else, we might indulge in building sand-castles or perhaps long walks on the sand at sunset!

It was one such evening while walking along the water’s edge during a visit to the Devbagh Beach Resort near Karwar that I was treated to one of the most beautiful creatures that I had ever seen – probably a crab. Spines on either side of its body and legs that were flattened gave it a very non-crab appearance at first sight.

The creature that I was staring at had an almost circular body which was about 4 cm across. But the flattened appendages intrigued me and left me wondering what these adaptations could possibly mean.

Face-to-face with the Moon Crab.


Adult females have been found to be capable of producing more than one batch of eggs from a single mating with each batch containing about 65,000 eggs!

Moon Crabs have a very wide distribution. They are known to occur all the way from the Red Sea, through much of Asia to Australia where it is common in the Great Barrier Reef.

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