Invertebrate Notes
All Materials © Cmassengale
Invertebrate Phyla:
| Porifera-sponges | |||||||||||
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| Cnidaria: | |||||||||||
 sea anemone |
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 Jellyfish |
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| Platyhelminthes-flatworms | |||||||||||
 Fluke |
 Tapeworm |
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| Nematoda-roundworms | |||||||||||
 Trichinella |
 Ascaris |
 Hookworms |
 Pinworms |
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| Rotifera–rotifers | |||||||||||
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| Annelida-segmented worms | |||||||||||
 earthworm |
 leech |
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| Mollusca | |||||||||||
 clam |
 snail |
 octopus |
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| Arthropoda | |||||||||||
| Subphylum: Trilobita–trilobites (extinct) | Subphylum: Chelicerata-horseshoe crabs, spiders, scorpions, mites, & ticks | Subphylum: Mandibulata–crustaceans, insects, millipedes, centipedes | |||||||||
 Trilobite |
 Horseshoe crab |
 Millipede |
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| Echinodermata: starfish, sea cucumbers, sea lilies | |||||||||||
 Starfish |
 Sea Cucumber |
 Sea Lily |
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About 97% of all animals are invertebrates. Invertebrates are animals which do not have a backbone. There are nine phyla of invertebrates: Porifera, Cnidaria, Platyhelminthes, Nematoda, Rotifera, Mollusca, Annelida, Arthropoda, & Echinodermata.
Sponges