Intertidal Invertebrates Survey Name Locate intertidal invertebrates. Check with instructor for confirmation. Identify organism by writing the common (or scientific) name in the space under the taxonomic category to which it belongs. Place a checkmark in the column of the intertidal region where it was found.

Upper Middle Lower

Phylum Porifera (usually subtidal) Phylum Platyhelminthes Class Turbellaria Phylum Cnidaria Class Hydrozoa Class Anthozoa Phylum Annelida Class Polychaeta Phylum Mollusca Class Gastropoda Class Bivalvia Class Polyplacophora Class Cephalopoda Phylum Arthropoda Class Crustacea Phylum Echinodermata Class Asteroidea Class Echinoidea Class Ophiuroidea Phylum Chordata Sub-Phylum Urochordata (usually subtidal) Sub-Phylum Vertebrata Class Osteichthyes