Plumularia, Cellularia, Valkeria, Obelia, Clytia.

• IV. Platyhelminthes
• Turbellaria (Flat-worms)
• Trematodes (Parasitic flat-worms)
• Cestodes (Tape-worms)
• Nemertinea (Nemertines)

• V. Nemathelminthes
• Nematoda (Round worms)
• Gordiacea (Hair worms)
• Acanthocephala (Acanthocephalids)
• Chætognatha (Sagitta)

• VI. Trochelminthes
• Rotifera (Wheel animalcules)
• Gastrotricha (Chætonotus)
• Kinorhyncha (Echinoderes)

• VII. Molluscoidea
• Bryozoa (Corallines)
• Entoprocta
• Ectoprocta
• Membranipora, Scrupocellaria, Retepora? Flustra?
• Brachiopoda (Lamp shells)
• Phoronidea (Phoronis)

• VIII. Annulata
• Archiannelida (Primitive worms, including Dinophilus)
• Chætopoda (True worms)
  

• Polychæta
• Chætopterus, Phyllochaetopterus, Telepsaris, Polynoë, Acholoë, Tomopteris, Odontosyllis, Lepidonotus, Pionosyllis, Phyllodoce, Heterocirrus, Polyopthalamus?
• Oligochæta
• Lumbricus, Photodrilus, Allolobophora (Eisemia), Microscolex, Nonlea, Enchytræus, Octochætus.
• Gephyrea (Sipunculus)
• Hirudinea (Leeches)
• Myzostomida (Myzostomus)

• IX. Echinodermata
• Asteroidea (Star-fish)
• Ophiuroidea (Brittle-stars)
• Ophiurida
• Ophiopsila, Amphiura, Ophiacantha, Ophiothrix, Ophionereis.
• Euryalida
• Echinoidea (Sea urchins)
• Holothuroidea (Sea Cucumbers)
• Crinoidea (Feather-stars)

• X. Arthropoda
• Crustacea (Crabs, lobsters, shrimps, etc.)
• Phyllapoda
• Ostracoda
• Halocypris, Cypridina, Pyrocypris, Conchœcia, Cyclopina.
• Copepoda
• Metridia, Leuckartia, Pleuromma, Oncæa, Heterochæta.
• Cirripedia
• Phyllocardia
• Schizopoda
• Nyctiphanes, Nematoscelis, Gnathophausia, Euphausia, Stylochiron,Boreophausia, Mysis?
• Decapoda
• Sergestes, Aristeus, Heterocarpus, Hoplophorus, Acanthephyra, Pentacheles, Colossendeis
• Stomatopoda
• Cumacea
• Amphipoda
• Isopoda
• Onychophora (Peripatus)
• Myriapoda (Centipedes and Millepedes)
• Symphyla
• Chilopoda
  

• Geophilus, Scolioplanes, Orya.
• Diplopoda
• Pauropoda
• Insecta (Insects)
• Aptera (Spring-tails)
• Lipura, Amphorura, Neanura
• Orthoptera
• Neuroptera
• Teleganoides and Cænis of the Mayflies? Termites?
• Hemiptera
• Diptera (Flies)
• Bolitophila and Ceroplatus larvæ, Thyreophora?
• Coleoptera (Beetles)
• Pyrophorus, Photophorus, Luciola, Lampyris, Phengodes, Photuris, Photinus, etc.
• Lepidoptera
• Hymenoptera
• Arachnida (Spiders)

• XI. Mollusca
• Amphineura (Chiton)
• Pelecypoda (Bivalves)
• Protobranchia
• Filibranchia
• Pseudo-Lamellibranchia
• Eu-lamellibranchia
• Pholas
• Septibranchiata
• Gasteropoda (Snails, periwinkles, slugs, etc.)
• Prosobranchiata
• Ophisthobranchiata
• Phyllirrhoë, Plocamopherus.
• Pulmonata
• Scaphopoda (Dentalium)
• Cephalopoda (Squids and Octopus)
• Tetrabranchiata
• Dibranchiata decapoda
• Onychoteuthis, Chaunoteuthis, Lycoteuthis, Nematolampas, Lampadioteuthis, Enoploteuthis, Abralia, Abraliopsis, Watasenia, Ancistrocheirus,