-
Class Polychaeta
In Phylum Annelida
- Genus Nereis
- Genus Aphrodita
-
Class Oligochaeta
In Phylum Annelida
Genus Lumbricus
-
Genus Nereis
- In Phylum Annelida
- In Class Polychaeta
with Genus Aphrodita
-
Genus Aphrodita
- In Phylum Annelida
- In Class Polychaeta
with Genus Nereis
-
Genus Lumbricus
- In Phylum Annelida
- In Class Oligochaeta
-
Class Hirudinea
In Phylum Annelida
Genus Hirudo
-
Genus Hirudo
- In Phylum Annelida
- In Class Hirudinea
-
Phylum Annelida
- Class Polychaeta
- Class Oligochaeta
- Class Hirudinea
-
Phylum Arthopoda
- Subphylum Chelicerata
- Subphylum Crustacea
- Subphylum Myriapoda
- Subphylum Hexapoda
-
Subphylum Chelicerata
In Phylum Arthopoda
- Class Merostomata
- Class Arachnida
-
Class Merostomata
- In Phylum Arthopoda
- In Subphylum Chelicerata
Genus Limulus
-
Class Arachnida
- In Phylum Arthopoda
- In Subphylum Chelicerata
- Order Araneae (Spiders)
- Order Scorpionida (Scorpions)
- Order Opilones (Harvestmen)
- Order Acari (Ticks)
-
Order Araneae
Spiders
- In Phylum Arthopoda
- In Subphylum Chelicerata
- In Class Arachnida
- Genus Latrodectus
- Genus Loxosceles
-
Subphylum Crustacea
In Phylum Arthopoda
- Class Maxilopoda
- Class Malacostraca
-
Class Maxilopoda
- In Phylum Arthopoda
- In Subphylum Crustacea
Subclass Cirripedia (barnacles)
-
Subclass Cirripedia
Barnacles
- In Phylum Arthopoda
- In Subphylum Crustacea
- In Class Maxilopoda
Genus Balanus
-
Class Malacostraca
- In Phylum Arthopoda
- In Subphylum Crustacea
- Order Isopoda
- Order Decapoda (shrimp, crab, etc)
-
Order Isopoda
- In Phylum Arthopoda
- In Subphylum Crustacea
- In Class Malacostraca
Genus Armadillidium
-
Order Decapoda
- In Phylum Arthopoda
- In Subphylum Crustacea
- In Class Malacostraca
- Genus Penaeus
- Genus Cancer
-
Subphylum Myriapoda
In Phylum Arthopoda
- Class Chilopoda (centipedes)
- Class Diplopoda (millipedes)
-
Subphylum Hexapoda
In Phylum Arthopoda
Class Insecta
-
Order Scorpionida
Scorpions
- In Phylum Arthopoda
- In Subphylum Chelicerata
- In Class Arachnida
-
Order Opiliones
Harvestmen
- In Phylum Arthopoda
- In Subphylum Chelicerata
- In Class Arachnida
-
Order Acari
Ticks
- In Phylum Arthopoda
- In Subphylum Chelicerata
- In Class Arachnida
-
Order Hymenoptera
Ants, Bees, Wasps
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Siphonaptera
Fleas
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Thysanura
Silverfish
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Odonata
Dragonflies
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Orthoptera
Grasshoppers, Crickets
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Isoptera
Termites
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Anoplura
Sucking Lice
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Hemiptera
True Bugs
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Homoptera
Cicadas
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Coleoptera
Beetles
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Lepidoptera
Butterflies, Moths
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Order Diptera
True Flies
- In Phylum Arthopoda
- In Subphylum Hexapoda
- In Class Insecta
-
Phylum Echinodermata
- Subphylum Pelmatozoa
- Subphylum Eleutherozoa
-
Subphylum Pelmatozoa
In Phylum Echinodermata
Class Crinoidea
-
Class Crinoidea
- In Phylum Echinodermata
- In Subphylum Pelmetozoa
Genus Antedon
-
Genus Antedon
- In Phylum Echinodermata
- In Subphylum Pelmetozoa
- In Class Crinoidea
-
Subphylum Eleutherozoa
In Phylum Echinodermata
- Class Asteroida (star form - sea stars)
- Class Ophiuroidea (snake tail form - brittle stars)
- Class Echinoidea (spiny form - sea urchins, sea buscuits, sand dollars)
- Class Holothuroidea (sea cucumber form - sea cucumbers)
-
Class Asteroida
- In Phylum Echinodermata
- In Subphylum Eleutherozoa
- Genus Asterias
- Genus Echinaster
-
Class Ophiuroidea
- In Phylum Echinodermata
- In Subphylum Eleutherozoa
Genus Ophiura
-
Genus Ophiura
- In Phylum Echinodermata
- In Subphylum Eleutherozoa
- In Class Ophiuroidea
-
Class Echinoidea
- In Phylum Echinodermata
- In Subphylum Eleutherozoa
Genus Strongylocentrotus
-
Class Holothuroidea
- In Phylum Echinodermata
- In Subphylum Eleutherozoa
- Genus Sclerodactyla
- Genus Holothuria
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