Subphyla Crustacea &
Uniramia
1. Subphylum Crustacea
• only group of arthropods that is primarily
aquatic
• examples: crayfish,lobster,shrimp,
barnacles, isopods (pill bugs), crabs (not
horseshoe)
Balanus Barnacles
Mantis Shrimp
Crayfish
Body Structure:
•Appendages:
•2 pairs of antennae
1.Swimmerets: small abdominal legs
•carapace: Cuticle
of head extends
posteriorly and
around sides
(Cephalothorax)
(exoskeleton =
CaCO3 calcium
carbonate)
2.Cheliped: 1st pair of walking legs;
Deep Water Shrimp
has pinching claw
3.Uropod: last pair; acts as rudder, jet
backwards very fast!
• Respiration: Gills
• Excretion: Green glands
Yellow Crab
B. Class Diplopoda
2. Subphylum Uniramia
Millipedes-
A. Class: Chilopoda - Centipedes-
• * Exude noxious chemicals
• Long body with many segments (flattened)
(defense)
• First segment has claws
• Long body with many segments
(cylindrical)
• Claws inject poison into prey
• No poison claws:
(predators!)
• *One pair of legs per segment!
• Carnivorous
Yellow spotted Millipede
Scolopendra Centipede
• TWO pairs of legs per segment
•Herbivores, detritivores (eat garbage)
• * Eat dead plant material
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C. Class Insecta
Bibliography
1. Make Your Own Notes!
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Crayfish image- http://www.seahorseworld.co.nz/layout/crayfish.php Date visited- November 19,2007
Balanus BarnaCrayfish image- http://www.seahorseworld.co.nz/layout/crayfish.php Date visitedNovember 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 Shrimphttp://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 visitedNovember 20, 2007
cles- 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 Shrimphttp://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 visitedNovember 20, 2007
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