Key to Australian Freshwater and Terrestrial Invertebrates

Superclass Clitellata - the worms and leeches

• Order Arhynchobdellida - the leeches
• Order Rhynchobdellida - the leeches
• Family Capilloventridae - the worms
• Family Enchytraeidae - the worms
• Family Haplotaxidae - the worms
• Family Lumbriculidae - the worms
• Order Megadrilacea- the earthworms
• Order Tubificida - the worms

Class Polychaeta - the polychaetes

• Family Aeolosomatidae - the polychaetes
• Family Capitellidae - the polychaetes
• Family Histriobdellidae - the polychaetes
• Family Nereididae - the polychaetes
• Family Nerillidae - the polychaetes
• Family Parerogodrilidae - the polychaetes
• Family Sabellidae - the polychaetes
• Family Serpulidae - the polychaetes
• Family Spionidae - the polychaetes

Class Arachnida - the arachnids

• Order Acariformes - the mites
• Order Amblypygi - the whip spiders
• Order Araneae - the spiders
• Order Opilioacariformes - the primitive mites
• Order Opiliones - the harvestmen
• Order Palpigradi - the palpigrades
• Superorder Parasitiformes - the mites and ticks
• Order Pseudoscorpiones - the pseudoscorpions
• Order Schizomida - the schizomids
• Order Scorpiones - the scorpions

Class Branchiopoda

• Order Anostraca - the brine shrimps
• Order Cladocera - the water fleas
• Orders Cyclestherida, Laevicaudata and Spinicaudata - the clam shrimps
• Order Notostraca - the shield shrimps

Class Malacostraca

• Order Amphipoda - the amphipods
• Order Anaspidacea - the cave shrimps
• Order Bathynellacea - the bathynellids
• Order Decapoda - the prawns, crabs and crayfish
• Order Isopoda - the isopods
• Order Mysidacea - the opossum shrimps
• Order Spelaeogriphacea - the cave shrimps
• Order Thermosbaenacea - the microcave shrimps

Class Maxillopoda

• Subclass Branchiura - the fish lice
• Subclass Copepoda - the copepods

• Class Ostracoda - the ostracods
• Class Remipedia - the remipedes

• Class and Order Collembola - the springtais
• Class and Order Diplura - the diplurans
• Class and Order Protura - the proturans

Class Insecta - the insects

• Order Archaeognatha - the bristletails
• Order Blattodea - the cockroaches
• Order Coleoptera - the beetles
• Order Dermaptera - the earwigs
• Order Diptera - the flies
• Order Embioptera - the web spinners
• Order Ephemeroptera - the mayflies
• Order Hemiptera - the bugs
• Order Hymenoptera - the ants, bees and wasps
• Order Isoptera - the termites
• Order Lepidoptera - the butterflies and moths
• Order Mantodea - the mantids
• Order Mecoptera - the hanging flies
• Order Odonata - the dragonflies
• Order Megaloptera - the dobsonflies
• Order Neuroptera - the lacewings
• Order Orthoptera - the grasshoppers and crickets
• Order Phasmatodea - the stick insects
• Order Phthiraptera - the lice
• Order Plecoptera - the stoneflies
• Order Psocoptera - the booklice
• Order Siphonaptera - the fleas
• Order Strepsiptera - the stylops
• Order Thysanoptera - the thrips
• Order Trichoptera - the caddisflies
• Order Zoraptera - the zorapterans
• Order Zygentoma - the silverfish

• Class Symphyla
• Class Pauropoda

Class Chilopoda - the centipedes

• Order Scutigeromorpha - the house centipedes
• Order Lithobiomorpha - the stone centipedes
• Order Craterostigmomorpha - the craterostigmomorphs
• Order Scolopendromorpha - the scolopendromophs
• Order Geophilomorpha - the soil centipedes

Class Diplopoda - the millipedes

• Order Chordeumatida - the chordeumatid millipedes
• Order Julida - the julid millipedes
• Order Polydesmida - the flatback millipedes
• Order Polyxenida - the pin cushion millipedes
• Order Polyzoniida - the polyzoniid millipedes millipedes
• Order Siphonophorida - the sucking millipedes
• Order Sphaerotheriida - the giant pill millipedes
• Order Spirobolida - the spirobolid millipedes
• Order Spirostreptida - the spirosteptid millipedes

Class Phylactolaemata

• Order Plumatellida

Class Gymnolaemata

• Order Ctenostomata

Class Hydrozoa

• Families Hydridae & Oceaniidae - hydroid forms
• Families Oliniidae & Austromedusidae - hydromedusoid forms

Class Bivalvia

• Order Unionida
• Order Veneroida

Class Gastropoda

Informal group Architaeniogloassa

• Family Ampullariidae
• Superfamily Cyclophoroidea
• Family Viviparidae

Clade Hypsogastropoda

• Superfamily Rissooidea

Clade Neritimorpha

• Family Neritidae
• Family Hydrocenidae
• Family Helicinidae

Clade Opisthobranchia

• Order Acochlidea

Informal group Pulmonata

• Family Ellobiidae
• Family Glacidorbidae
• Informal group Hygrophila
• Clade Stylommatophora
• Clade Systellommatophora

Clade Sorbeoconcha

• Superfamily Cerithioidea

• Group "Turbellaria"
• Class Monogenea
• Class Trematoda - the flukes
• Class Cestoda - the tapeworms