Invertebrates

Invertebrates

1. Porifera

   • Sponges
   • Parazoa, Choanocytes

2. Eumetazoa

   • Cnidaria
     • Hyrdras, jellies, sea anemones, corals
     • Cnidocytes/nematocysts
     • Medusozoa
       • Scyphozoans
       • Cubozoans
       • Hydrozoans
     • Anthozoa
   • Bilateria
     • Deuterostomia
       • Echinodermata
         • Asteroidea
           • Sea stars/daises
         • Holothuroidea
           • Sea cucumbers
         • Echinoidea
           • Sea lilies, feather stars
         • Crinoidea
           • Sea urchins, sand dollars
         • Ophiuroidea
           • Brittle stars
       • Chordata
         • Lancelets, tunicates, vertebrates
     • Ecdysozoa
       • Nematoda
         • Unsegm. worms
       • Arthropoda
         • Chelicerates
           • Spiders, scorp., mites, ticks, horseshoe cr.
         • Myriapods
           • Centi/millipedes
         • Pancrustaceans
           • Crustaceans
             • Crabs, shrimp, lobsters, crayfish, barnacles, water fleas
           • Hexapods
             • Insects and relatives
       • Cuticle, ecdysis
     • Lophotrochozoa
       • Annelida
         • Segmented worms
         • Errantians
         • Sedentarians
           • Earthworms, leeches
       • Mollusca
         • Clams, snails, squids
         • Polyplacophora
         • Gastropoda
         • Bivalves
         • Cephalopods
       • Lophophorates
         • Ectoprocta
         • Brachiopoda
       • Syndermata
         • Rotifers
         • Acanthocephalans
       • Platyhelminthes
         • Flatworms
         • Planarians
         • Trematodes
         • Tapeworms
     • Bilat., triploblast.
   • True tissues