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all images © Joseph Dougherty

insects and spiders are listed here

Annelida (segmented worms) PHYLUM
   Polychaeta (marine seg. worms)
     Errantia (free living)
     Sedentaria (sessile)
       Sabellidae
   Oligochaeta (earth worms)
   Hirudinea (leaches)

Sipuncula, Echiura, Priapulida, other worms PHYLA

Arthropoda PHYLUM
insects and spiders are listed here
   Crustacea
     Cirripedia (barnacles)
     Brachyura (crabs)
     Decapoda (lobster, shrimp)
     Malacostraca, various

Cnidaria (corals, jellies, anemones) PHYLUM
 Anthozoa CLASS
   Alcyonaria SUBCLASS
     Alcyonacea (soft corals) ORDER
         Dendronepthya
     Gorgonacea (sea fans) ORDER
     Pennatulacea (sea pens) ORDER
     Telestacea ORDER
   Ceriantipatharia SUBCLASS
     Antipatharia (black corals) ORDER
     Ceriantharia (tube anemones) ORDER
     Dendrobrachiidae FAMILY
   Zoantharia SUBCLASS
     Actinaria (sea anemones) ORDER
     Corallimorpharia (coral anemones) ORDER
     Ptychodactiaria ORDER
     Scleractinia (stony corals) ORDER
     Zoanthidea (zoanthids) ORDER
 Cubozoa (sea wasps) CLASS
     Cubomedusae ORDER
 Hydrozoa (hydrozoans) CLASS
     Hydroida ORDER
     Milleporina ORDER
       Milleporidae (fire corals)
     Siphonophora (siphonophores) ORDER
     Stylasterina ORDER
       Stylasteridae (hydrocorals)
 Scyphozoa (jellyfishes) CLASS
     Coronatae (crown jellyfishes) ORDER
     Rhizostomeae ORDER
       Cassiopeidae (upsidedown jellyfishes)
     Semaeostomeae ORDER
       Cyaneidae
       Pelagiidae

Echinodermata PHYLUM
   Asteroidea (sea stars) CLASS
     Valvatida ORDER
         Acanthasteridae FAMILY
   Crinoidea (feather star) CLASS
   Echinoidea CLASS
     Regularia (sea urchins)
       Echinidae (sea urchins)
     Irregularia (heart urchins)
   Holothuroidea (sea cucumbers) CLASS
     Apodida ORDER
     Aspidochirotida ORDER
     Dendrochirotida ORDER
     Elasipodida ORDER
   Ophiuroidea (brittle stars) CLASS

Mollusca PHYLUM
 Bivalvia (mussles, clams, oysters) CLASS
 Cephalopoda (cephalopods) CLASS
   Decapodiformes ORDER
     Sepiidae (cuttle fish)
   Octopoda ORDER
     Octopodidae (octopods)
 Gastropoda (snails) CLASS
     Pulmonata ORDER
   Opisthobranchia SUBCLASS
     Nudibranchia ORDER
       Aeolidina SUBORDER
       Arminina SUBORDER
       Dendronotina SUBORDER
       Doridina SUBORDER

 Polyplacophora (chitons) CLASS
 Scaphopoda (tusk shells) CLASS

Porifera (sponges) PHYLUM
  Calcarea CLASS
  Demospongiae CLASS

Platyhelminthes (flat worms) PHYLUM
 Cestoda (tapeworms) CLASS
 Trematoda CLASS

Tentaculata PHYLUM
   Bryozoa (moss animals)
   Phoronida (horseshoe worms)

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