Scientific name | Common name |
Class Monoplacophora | Monoplacophorans |
Class Polyplacophora | Chitons |
Class Aplacophora | Solenogasters |
Class Scaphopoda | Tooth/tusk shells |
Class Gastropoda | Snails, slugs, whelks, nudibranch, limpets |
Class Bivalvia (Pelecypoda) | Clams, mussels, oyster, scallops |
Class Cephalopoda | Squid, octopi, nautili, cuttlefish |
Class Polychaeta (Polychaete Worms) | Clamworm, lug worm, feather-duster/fan worm, plume worm, arachiannelid |
Class Oligochaeta (Bristleworms) | Earthworms, dung worm, sewage worm |
Class Hirudinea | Leeches |
Class Merostomata | Water scorpion, horseshoe crab |
Class Pycnogonida | Sea spider |
Class Arachnida | Spider, tick, scorpion |
Class Branchiopoda | Water flea, fairy shrimp, brine shrimp, claim shrimp, tadpole shrimp, etc. |
Class Maxillopoda | Ostracoda, Copepoda, Branchiura fish louse, Cirripedia barnacles |
Class Malacostraca | Isopoda sow bugs and pill bugs, Amphipoda beach fleas and skeleton shrimp, Euphausiacea krill, Decapoda crayfish, lobsters, crabs, fiddler crabs, decorator crabs, etc. |
Class Diplopoda | Millipedes |
Class Chilopoda | Centipedes |
Class Pauropoda | Pauropods |
Class Symphyla | Garden centipede |
Class Entognatha | Spring tails, snow fleas, japygids |
Class Insecta | Mayflies, dragonflies, grasshoppers, "true" bugs, mealybugs, beetles, "true" flies, butterflies, moths, bees, wasps, termites, biting lice, etc. (900,000 species) |
Class Enteroneusta | Entropneusts |
Class Pterobranchia | Pterobranchs |
Phylum Sipuncula | Sipunculans |
Phylum Echiura | Echiurans |
Phylum Phoronida | Lophophorates (ex: worm-like animals) |
Phylum Brachiopoda | Lophophorates (ex: bottom-dwelling marine worms) |
Phylum Ectoprocta | Lophophorates (ex: ectoprocts) |
Phylum Pentastomida | Pentastomids |
Phylum Onychophora | Onycophorans |
Phylum Tardigrada | Tardigrades |
Phylum Chaetognatha | Arrowworms |
Class Echinoidea | Sea urchins, sand dollars |
Class Holothuroida | Sea cucumbers |
Class Crinoidea | Sea lilies, basket star, feather star |
Class Asteroidea | Starfish or sea stars |
Class Ophiuroidea | Brittle stars, Pacific basket star |