Key to colors: DOMAIN, KINGDOM,Phylum,Subphylum,Class,Subclass,Order,Family
Links can be any color, but all links are underlined.
ROOT (OVERVIEW) > EUKARYOTA > Opisthokonta > METAZOA > Eumetazoa > Bilateria >
Protostomia (Ch. 28)
- Lophotrochozoa (28-III)
- Gastrotricha - Gastrotrichs
- Entoprocta - Entoprocts
- Bryozoa - Bryozoans
- Acanthocephala - Thorny-Headed Worms
- Rotifera - Rotifers
- Nemertea - Ribbon Worms
- Cycliophora - Symbion pandora
- Myzostomida - ?
- Micrognathozoa - Limnognathia maerski
- Brachiopoda - Lampshells
- Annelida (28-IV) - Segmented Worms
- Polychaeta - Sandworms, Bloodworms, Lugworm
- Echiura - Spoonworms
- Palpata
- Scolecida
- Sipuncula - Peanut Worms
- Clitellata
- Branchiobdellae
- Hirudinida - Leeches
- Oligochaeta - Earthworms, Sludge Worms
- Mollusca (28-V) - Molluscs
- Aplacophora
- Caudofoveata
- Solenogastres - Solenogasters
- Monoplacophora
- Polyplacophora - Chitons
- Scaphopoda - Tusk Shells
- Bivalvia - Bivalves
- Anomalodesmata - Sandy Pandora, Cardiomya
- Heteroconchia - Shipworms, Surf Clams, Wedge Shells, Razor Clams
- Palaeoheterodonta - Sandshells, Pigtoes, Hickorynuts
- Protobranchia - Nutclams, Yolidas, Awningclams
- Pteriomorphia - Mussels, Oysters, Pearl Oysters, Scallops, Ark Shells
- Gastropoda - Gastropods
- Caenogastropoda - Mysterysnails, Conchs, Whelks, Cone Shells, Horn Shells, Turret Shells
- Cocculiniformia
- Heterobranchia - Land Snails, False Limpets, Rissos, Aeolises (Nudibranches), Sea Hares, "Bubbles"
- Neritimorpha - Nerites
- Patellogastropoda - Limpets
- Vetigastropoda - Abalones, Top Shells, Turban Shells
- Cephalopoda - Cephalopods
- Nautiloidea - Nautiluses
- Coleoidea
- Decapodiformes - Squids, Cuttlefishes
- Octopodiformes - Octopuses, Vampire Squids
- Ecdysozoa (28-VI)
- Nematoda - Roundworms
- Nematomorpha - Horsehair Worms
- Scalidophora
- Kinorhyncha - Spiny-Headed Worms
- Loricifera* - Loriciferans
- Priapulida - Priapulid Worms
- Panarthropoda (28-VII)
The classification system used on this page is based on the site of the National Center for Biotechnology Information.