Subphyla Crustacea & Uniramia

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Presentation transcript:

Subphyla Crustacea & Uniramia

only group of arthropods that is primarily aquatic 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 carapace: Cuticle of head extends posteriorly and around sides (Cephalothorax) (exoskeleton = CaCO3 calcium carbonate) Mantis Shrimp

Swimmerets: small abdominal legs Cheliped: 1st pair of walking legs; 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

A. Class: Chilopoda - Centipedes- 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

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

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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