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Subphyla Crustacea & Uniramia

Subphyla Crustacea & Uniramia. Subphylum Crustacea only group of arthropods that is primarily aquatic examples: crayfish,lobster,shrimp, barnacles, isopods (pill bugs), crabs (not horseshoe). Balanus Barnacles. Crayfish. Body Structure: 2 pairs of antennae

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Subphyla Crustacea & Uniramia

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  1. Subphyla Crustacea & Uniramia

  2. Subphylum Crustacea • only group of arthropods that is primarily aquatic • examples: crayfish,lobster,shrimp, barnacles, isopods (pill bugs), crabs (not horseshoe) Balanus Barnacles Crayfish

  3. Body Structure: • 2 pairs of antennae • carapace: Cuticle of head extends posteriorly and around sides (Cephalothorax) (exoskeleton = CaCO3 calcium carbonate) Mantis Shrimp

  4. Appendages: • Swimmerets: small abdominal legs • Cheliped: 1st pair of walking legs; • has pinching claw • 3.Uropod: last pair; acts as rudder, jet backwards very fast! • Respiration: Gills • Excretion: Green glands Deep Water Shrimp Yellow Crab

  5. 2. Subphylum Uniramia • A. Class: Chilopoda - Centipedes- • Long body with many segments (flattened) • First segment has claws • Claws inject poison into prey • (predators!) • *One pair of legs per segment! • Carnivorous Scolopendra Centipede

  6. B. Class Diplopoda • Millipedes- • * Exude noxious chemicals • (defense) • Long body with many segments (cylindrical) • No poison claws: • TWO pairs of legs per segment • Herbivores, detritivores (eat garbage) • * Eat dead plant material Yellow spotted Millipede

  7. C. Class Insecta • Bibliography • Crayfish image- http://www.seahorseworld.co.nz/layout/crayfish.php Date visited- November 19,2007 • Balanus Barnacles- http://www.biosbcc.net/ocean/flhi.htm Date visited- November 19,2007 • Mantis Shrimp- http://www.galaxy15.com/mantis-shrimp.html Date visited- Novemeber 19, 2007 • Yellow Crab & Deep Water Shrimp- http://www.curator.org/LegacyVMNH/WebOfLife/Kingdom/P_Arthropoda/ClassCrustaceans/crustaceans.htm Date visited- November 20, 2007 • Centipede- http://www.britannica.com/eb/art-4741/Centipede Date visited- November 20, 2007 • Millipede- http://greennature.com/gallery/pictures-of-insects/yellow_spotted_millipede.html Date visited- November 20, 2007

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