Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes


Class Merostomata - Horseshoe Crabs

Atlantic horseshoe crab - Limulus polyphemus - male - female Atlantic Horseshoe Crab - Limulus polyphemus Horseshoe crab shell on Florida beach - Limulus polyphemus Hope - Limulus polyphemus - male Limulus polyphemus Limulus polyphemus Limulus polyphemus - male Limulus polyphemus - male
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