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  • Limulus - Wikipedia
    Limulus is a genus of horseshoe crab, with one extant species, the Atlantic horseshoe crab (Limulus polyphemus) One fossil species is currently assigned to the genus though several other species have been named, which have since been assigned to other genera
  • Atlantic Horseshoe Crab - U. S. Fish and Wildlife Service
    The American horseshoe crab (Limulus polyphemus) is the only species of horseshoe crab found in North America Other horseshoe crab species (Carcinoscorpius rotundicauda, Tachypleus gigas and Tachypleus tridentatus) are found in Asia
  • Horseshoe Crab - National Wildlife Federation
    The horseshoe crab species found around the United States (Limulus polyphemus) lives in the Atlantic Ocean along the North American coastline Horseshoe crabs can also be seen along the East and Gulf coasts of the United States and Mexico
  • Atlantic horseshoe crab, facts and photos | National Geographic
    Atlantic horseshoe crabs may appear alien, but their history as earthlings is pretty impressive They’ve been around for 450 million years, predating the dinosaurs by more than 200 million years
  • Atlantic Horseshoe Crab - Marine Biological Laboratory
    We call them crabs, but Atlantic horseshoe crabs (Limulus polyphemus) are more closely related to spiders and scorpions than true crabs These “living fossils” have been on Earth for more than 445 million years—that’s older than the dinosaurs
  • Horseshoe crab | Blood Facts | Britannica - Encyclopedia Britannica
    Best known is the single American species Limulus polyphemus, specimens of which can reach a length of more than 60 cm (2 feet), though males and females typically average lengths of 36 6–38 1 cm (14–15 inches) and 45 7–48 3 cm (18–19 inches) respectively
  • Limulus: Distribution and Ecology | Zoology
    Description of Limulus: The horse-shoe crabs—misnomerly called king crabs—are marine arthropods, which were abundant in Ordovician and Silurian periods They have undergone little changes from the Silurian time and are represented by only five species today
  • SG190 SG190: The American Horseshoe Crab (Limulus polyphemus) - EDIS
    American horseshoe crabs (Limulus polyphemus) are prehistoric-looking creatures that have not changed in appearance since the Mesozoic Era (roughly 200 million years ago) when dinosaurs roamed the Earth The oldest horseshoe crab fossil dates to 445 million years ago, and their related ancestors are all extinct
  • Atlantic horseshoe crab - Wikipedia
    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 ]
  • Horseshoe crab done - South Carolina Department of Natural Resources
    known as Limulus Amoebocyte Lysate (LAL), is used to detect microbial pathogens in medical intravenous fluids, injectable drugs and supplies (Rudloe, 1983) Biomedical companies purchase large crabs, which are harvested by trawlers or by hand from spawning beaches The





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