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phyla
| common name | phylum |
|---|---|
| trichoplax adhaerens | placozoa |
| sponges | porifera |
| coelenterates; hydra; true jellyfish; corals; sea anemones | cnidaria |
| comb jellies; sea gooseberries | ctenophora |
| mesozoans | mesozoa |
| flatworms; flukes; tapeworms | platyhelminthes |
| ribbon worms or proboscis worms | nemertina |
| jaw worms or gnasthostomulids | gnasthostomulida |
| gastrotrichs | gastrotricha |
| rotifers or wheel animals | rotifera |
| rotifera | wheel animals |
| spiny-headed worms | acanthocephala |
| horsehair worms; hair-worms; gordian worms | nematomorpha |
| horseshoe worms; phoronids | phoronida |
| lamp shells | brachiopoda |
| snails and slugs (gastropoda), clams, mussels, oysters (bivalva), octopus, squid (cephalopoda) | mollusca |
| peanut worms | sipulida |
| spoon worms | echiura |
| earthworms, leeches, ragworms | annelida |
| water bears | tardigrada |
| tongue worms | pentastoma |
| velvet worms | onychophora |
| crustaceans, scorpions, mites, ticks, spiders, insects, centipedes, millipedes | arthropoda |
| beard worms | pogophora |
| starfish, sea urchins, sea cucumbers | echinodermata |
| arrow worms | chaetognatha |
| mammals; birds; amphibians; reptiles; fish; a few invertebrates | chordata |