Phylum porifera
sponges
PHYLUM CNIDERIA: CLASS HYDROZOA
Hydra, Physalia physalis
PHYLUM CNIDERIA: CLASS SCYPHOZOA
Aurelia, Comb jelly
PHYLUM CNIDERIA: CLASS ANTHOZOA
Metridium, several coral species
PHYLUM PLATYHELMINTHES: CLASS TURBELLARIA
Planarian
PHYLUM PLATYHELMINTHES: CLASS TREMATODA
Fasciola hepatica
PHYLUM NEMATODA
Ascaris lumbricoides
PHYLUM ROTIFERA
Rotifer
PHYLUM ANNELIDA: CLASS POLYCHAETA
Neanthes/Nereis
PHYLUM ANNELIDA: CLASS OLIGOCHAETA
Lumbricus
PHYLUM ANNELIDA: CLASS HIRUDINEA
Leech