Other Arthropoda
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Transcript of Other Arthropoda
Other Arthropoda
Water Mites• Small, often brightly colored,
especially red• Cephalothorax is small,
making the abdomen the only visible segment
• Common in shallow littoral zone among aquatic plants
• Adults are mostly piercer-predators on small dipterans and microcrustaceans
• Larvae are external parasites especially on larval midges and mosquitoes
• Have a very complex life cycle
Order Isopoda: Sow Bugs
• Secretive; found in shallow water
• Omnivorous• Eggs held in marsupium
Order Amphipoda: Scuds,Sideswimers
• Laterally compressed• Most abundant in the
absence of fish• Negatively phototactic• Omniovores• Eggs and young are
brooded in marsupium• Some are subterranean
Order Decapoda:Crayfish and Shrimps
Fairy Shrimp
Order Ostracoda: Clam Shrimp