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Class Merostomata - Horseshoe Crabs

Atlantic Horseshoe Crab - Limulus polyphemus Moving Out - Limulus polyphemus - male Limulus polyphemus Atlantic horseshoe crab eggs - Limulus polyphemus Limulus polyphemus mating Atlantic Horseshoe Crabs - Limulus polyphemus - male - female Limulus polyphemus Limulus polyphemus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Merostomata (Horseshoe Crabs)
One North American species, Limulus polyphemus.
In addition to the order Xiphosura, which includes the horseshoe crabs, this class includes the extinct order Eurypterida, known as sea scorpions.
Internet References