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Hoplocarida
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Hoplocarida

crustacean

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taxonomy

  • American lobster
    In crustacean: Annotated classification

    Subclass HoplocaridaCarboniferous to present.Order Stomatopoda (mantis shrimps)Jurassic to present; eyes stalked; 2 movable segments in head; carapace leaves 4 thoracic segments uncovered; second thoracic limbs massive; marine; about 350 species.†Order Palaeostomatopoda

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  • hermit crab
    In malacostracan: Annotated classification

    Subclass Hoplocarida Late Devonian to Holocene; carapace large, not bivalved; rostrum hinged; antennules 3-branched; forward thoracic legs subchelate (clawlike); hind thoracic legs ambulatory (walking) or burrowing; abdomen large; pleopods bearing gills; terminal segment with large tail fan; 3 orders. †Order Aeschronectida Carboniferous; carapace

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