Chordata
dorsel nerve cord & backbones;
fish, birds, mammals, amphibians
Coelenterata (Cnideria)
hollow body cavity & stinging cells;
jellyfish, hydra
Platyhelmenthes
flatworms;
tapeworm, liver fluke
Mollusca
footed" or moist with shells;
clams, oysters, squid, octopus
Nematoda
roundworms;
hookwork, trichina
Porifera
pore" bearing;
sponges
Arthropoda
segmented bodies & jointed appendages (legs);
spiders, insects, crabs, lobsters
Annelida
segmented worms;
earthworms, leeches
Echinodermata
spiny skin;
starfish, sea urchins, sand dollars