The Nature Society (Singapore) Horseshoe Crab survey team hopes nature guides, volunteers and those who visit our shores and mangroves regularly can share their sightings of horseshoe crabs.
If you have sightings, please help them by filling in their survey questionaire.
More details about the survey on November's Midnight Monkey Monitor
Singapore has two species of horseshoe crabs. The Mangrove horseshoe crab (Carcinoscorpius rotundicauda) found mostly in our mangroves or nearby ecosystems and the Coastal horseshoe crab (Tachypleus gigas) found mostly on our other shore ecosystems.
The Mangrove horseshoe crab is listed as 'Vulnerable' and the Coastal horseshoe crab as 'Endangered' in the Singapore Red Data Book.
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