Animals are classified according to body plans such as radial or bilateral symmetry, presence of a coelom, and whether they are Protostomes or Deuterostomes. The following represent the Phyla that are most easily distinguished in the marine eenvironment of Southeast Alaska. The common names of the types of organisms are listed and serve to be helpful to those less versed in invertebrate taxonomy. Click on the Phylum to discover more information about these groups
Porifera: sponges
Cnidaria: jellyfish, sea anemones, sea pens
Ctenophora: Comb Jellies
Platyhelminthes: Flat worms
Nemertea: Ribbon worms
Mollusca: Clams, oysters, snails, cephalopods, limpets, chitons,
Annelida: Segmented worms
Tardigrada: water bears
Arthropoda: animals with jointed appendages including crabs, shrimps, insects, mites and the likes
Echinodermata

Biology 305 |
SE Alaska |