Naming examples

phylum porifera (sponge)

phylum cnidaria, class scyphozoa (sea jelly)

phylum cnidaria, class anthozoa (sea anemone)

phylum Platyhelminthes, class trematoda (fluke)

phylum platyhelminthes, class cestoda (tapeworm)

phylum Annelida, class polychaeta (clam worm)

phylum annelida, class polychaeta (sea mouse)

phylum Annelida, class oligochaeta (earthworm)

phylum annelida, class Hirudinea (leech)

phylum Mollusca, class polyplacophora (chiton)

phylum mollusca, class gastropoda (snail)

phylum mollusca, class gastropoda (slug)

phylum mollusca, class bivalvia (scallop)

phylum mollusca, class cephalopda (squid)

phylum mollusca, class cephalopoda (octopus)

phylum arthropoda, subphylum Cheliceriformes, class merostomata (horseshoe crab)

phylum arthropoda, subphylum cheliceriformes, class arachnida (scorpion)

phylum arthropoda, subphylum cheliceriformes, class Arachnida (garden spider)

phylum arthropoda, subphylum myriapoda, class diplopoda (millipede)

phylum arthropoda, subphylum myriapoda, class chilopoda (centipede)

phylum arthropoda, subphylum crustacea, class crustacea (crayfish)

phylum arthropoda, subphylum crustacea, class crustacea (crab)

phylum arthropoda, subphylum hexapoda, class insecta (praying mantis)

phylum arthropoda, subphylum hexapoda, class insecta (grasshopper)

phylum echinodermata, class ophiuridea (brittle star)

phylum echinodermata, class asteroidea (star fish)

phylum echinodermata, class echinoidea (sea urchin)

phylum echinodermata, class echinoidea (sand dollar)

phylum echinodermata, class holothuroidea (sea cucumber)