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Hoplostraca
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Hoplostraca

crustacean

Learn about this topic in these articles:

taxonomy

  • American lobster
    In crustacean: Annotated classification

    †Order HoplostracaCarboniferous.Order LeptostracaPermian to present; bivalved carapace encloses 8 pairs of leaflike limbs; movable rostrum; telson with caudal rami; marine; about 10 species.Subclass HoplocaridaCarboniferous to present.

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  • hermit crab
    In malacostracan: Annotated classification

    †Order Hoplostraca Late Carboniferous; carapace short; antennae 2 one-branched, raptorial in form; 1 family. Order Leptostraca (visored shrimp) Permian to Holocene; carapace large, not hinged; antennae 2 one-branched, slender; terminal abdominal segment with pair of large paddlelike branches; eggs brooded under carapace; marine;

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