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The Atlantic horseshoe crab (Limulus polyphemus), also known as the American horseshoe crab, is a species of horseshoe crab, a kind of marine and brackish chelicerate arthropod. [1] It is found in the Gulf of Mexico and along the Atlantic coast of North America. [1] The main area of annual migration is Delaware Bay along the South Jersey ...
[25]: 555 In addition to the two main tagmata, the horseshoe crab also possesses a long tail-like section known as the telson. [25]: 555 In total, horseshoe crabs have 6 pairs of appendages on their cephalothorax. The first of these are the chelicerae, which give chelicerates their name. In horseshoe crabs, these look like tiny pincers in front ...
Xiphosura (/ zɪfoʊˈsjʊərə /; [2] from Ancient Greek ξίφος (xíphos) 'sword' and οὐρά (ourá) 'tail', in reference to its sword-like telson) is an order of arthropods related to arachnids. They are more commonly known as horseshoe crabs (a name applied more specifically to the only extant family, Limulidae). They first appeared ...
Horseshoe crabs are brown, body-armored arthropods with 10 eyes and a long, spiked tail. Their prehistoric appearance belies that they are completely harmless to humans.
The cephalothorax is protected by this single large, horseshoe-shaped plate, and neither it nor the abdomen is visibly segmented. The tail bears a long spike, known as the telson. [5] Like other horseshoe crabs, the carapace of T. tridentatus consists of a larger frontal one (the prosoma) and a smaller, spine-edged rear one (the opisthosoma ...
Limulus moluccanus Latreille, 1802. Tachypleus gigas, commonly known as the Indo-Pacific horseshoe crab, [3] Indonesian horseshoe crab, [4] Indian horseshoe crab, [5] or southern horseshoe crab, [6] is one of the four extant (living) species of horseshoe crab. It is found in coastal water in South and Southeast Asia at depths to 40 m (130 ft).
One of the most important ecosystems for horseshoe crabs is the Delaware Bay, an estuary of the Delaware River between Delaware and New Jersey. The bay is where the crabs breed and the red knots feed.
Hong Kong conservationists on Wednesday began underwater tracking of endangered horseshoe crabs, which date back to before the dinosaurs, in a bid to help them survive the perils of modern life.