Invertebrates Taxonomy

Sponges

Phylum Porifera

Class Calcarea

Class Hexactinellida

Class Demospongiae

Calcareous sponges

Class Calcarea

Phylum Porifera

Calcium carbonate spicules

Glass sponges

Class Hexactinellida

Phylum Porifera

Silica spicules

Both sponges

Class Demospongiae

Phylum Porifera

Spongin protein

Jellyfish

Phylum Cnidaria

Class Hydrozoa

Class Scyphozoa

Class Anthozoa

Class Cubozoa

“Animal water”

Class Hydrozoa

Phylum Cnidaria

True jellyfish

Class Scyphozoa

Phylum Cnidaria

“Flower animal”

Class Anthozoa

Phylum Cnidaria

4 orders: Actiniaria - Scleractinia - Alcyonacea - Pennatulacea

Sea anemone

Order Actiniaria

Class Anthozoa

Phylum Cnidaria

Hard coral, stony coral

Order Scleractinia

Class Anthozoa

Phylum Cnidaria

Gorgonian soft coral, sea fan

Order Alcyonacea

Class Anthozoa

Phylum Cnidaria

Sea pens, sea pansies

Order Pennatulacea

Class Anthozoa

Phylum Cnidaria

Box-jelly

Class Cubozoa

Phylum Cnidaria

Comb jellies

Phylum Ctenophora

Class Tentaculata

Class Tentaculata

3 orders: Cydippida - Lobata - Cestida

Phylum Ctenophora

Egg shaped, oval/sphere

Order Lobata

Class Tentaculata

Phylum Ctenophora

Flattened lobes extended from the body

Order Lobata

Class Tentaculata

Phylum Ctenophora

Long, ribbon shape

Order Cestida

Class Tentaculata

Phylum Ctenophora

Flat worms

Phylum Platyhelminthes

3 Classes: Turbellaria - Trematoda - Cestoda

Free living flat worms

Class Turbellaria

Phylum Platyhelminthes

Planaria - Dugesia

Planaria, Dugesia

Class Turbellaria

Phylum Platyhelminthes

Parasitic flukes

Class Trematoda

Phylum Platyhelminthes

Clonorchis - Schistosoma

Human liver fluke

Clonorchis

Class Trematoda

Phylum Platyhelminthes

Swimming cercaria

Schistosoma

Class Trematoda

Phylum Platyhelminthes

Parasitic tape worms

Class Cestoda

Phylum Platyhelminthes

Round worms

Phylum Nematoda

Free living and parasitic species: Caenorhabditis elegans - Trichinella spiralis - Ascaris

Horsehair worms

Phylum Nematomorpha

“Wheel bearing”, rotifers

Phylum Rotifera

“soft mollusks”

Phylum Mollusca

4 classes: Gastropoda, Polyplacophora, Bivalvia, Cephalopoda

“Stomach foot”

Class Gastropoda

3 orders: Opisthobranchia - Prosobranchia - Pulmonata

Sea slugs, nudibranchs

Order Opisthobranchia

Class Gastropoda

Phylum Mollusca

Gills behind the heart

Aquatic snails

Order Prosobranchia

Class Gastropoda

Phylum Mollusca

Gills infront the heart

Land snails/slugs

Order Pulmonata

Class Gastropoda

Phylum Mollusca

Chitins

“many plate bearer”

Class Polyplacophora

Phylum Mollusca

Oysters, mussles, scallops, clams

Class Bivalvia

Phylum Mollusca

Octopus, squid, nautilus

“head foot”

Class Cephalopoda

Phylum Mollusca

Segmented worms

Phylum Annelida

3 Classes: Polychaeta - Olygochaeta - Hirudinea

Bristle worm, ragworm, Christmas tree worm, sea mouse, Giant tube worm

“many hairs”, marine worms

Class Polychaeta

Phylum Annelida

Common European earthworm

Family Lumbricidae

Class Olygochaeta

Phylum Annelida

“few hairs”, earthworm

Leeches

Class Hirudinea

Phylum Annelida

Ribbon worm

Phylum Nemertea

Waterbear

Phylum Tardigrada

Velvet worms

Phylum Onychophora

Spiny-headed worms

Phylum Acanthocephala

“Jointed feet”

Phylum Arthropoda

4 subphyla: Trilobitomorpha - Chelicerata - Crustacea - Uniramia

Trilobites

Class Trilobita

Subphylum Trilobitomorpha

Phylum Arthropoda

Subphylum Chelicerata

Phylum Arthropoda

3 Classes: Merostomata - Arachnida - Pycnogonida

Horse-shoe crab

Class Merostomata

Subphylum Chelicerata

Phylum Arthropoda

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

7 orders: Scorpiones - Opiliones - Araneae - Acariformes - Ixodida - Amblypygi - Solifugae

Scorpions

Order Scorpiones

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Harvestman

Order Opiliones

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

True spiders

Order Araneae

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Mite

Order Acariformes

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Ticks

Order Ixodida

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Whipspiders, tailess whip scorpions

Order Amblypygi

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Camel spiders

Order Solifugae

Class Arachnida

Subphylum Chelicerata

Phylum Arthropoda

Sea spiders

Class Pycnogonida

Subphylum Chelicerata

Phylum Arthropoda

Subphylum Crustacea

Phylum Arthropoda

4 classes: Branchiopoda - Malacostraca - Maxillopoda - Ostracoda

Class Branchiopoda

Subphylum Crustacea

Phylum Arthropoda

3 Orders: Anostraca - Notostraca - Cladocera

Fairy shrimp, brine shrimp

Order Anostraca

Class Branchiopoda

Subphylum Crustacea

Phylum Arthropoda

Shield shrimp

Order Notostraca

Class Branchiopoda

Subphylum Crustacea

Phylum Arthropoda

Water fleas

Order Cladocera

Class Branchiopoda

Subphylum Crustacea

Phylum Arthropoda

Class Malacostraca

Subphylum Crustacea

Phylum Arthropoda

3 orders: Stomatopoda - Decapoda - Isopoda

Mantis shrimp

Order Stomatopoda

Class Malacostraca

Subphylum Crustacea

Phylum Arthropoda

Crayfish, crab, lobster, prawn, shrimp

Order Decapoda

Class Malacostraca

Subphylum Crustacea

Phylum Arthropoda

Pill bugs

Order Isopoda

Class Malacostraca

Subphylum Crustacea

Phylum Arthropoda

Class Maxillopoda

Subphylum Crustacea

Phylum Arthropoda

3 orders Copepoda - Thecostraca - Branchiura

Plankton

Order Copepoda

Class Maxillopoda

Subphylum Crustacea

Phylum Arthropoda

Barnacles

Order Thecostraca

Class Maxillopoda

Subphylum Crustacea

Phylum Arthropoda

Fish-lice

Order Branchiura

Class Maxillopoda

Subphylum Crustacea

Phylum Arthropoda

Seed shrimp

Class Ostracoda

Subphylum Crustacea

Phylum Arthropoda

Subphylum Uniramia

Subhylum Crustacea

Phylum Arthropoda

3 Classes: Chilopoda - Diplopoda - Insecta

Centipedes

Class Chilopoda

One pair of appendages per segment

Subphylum Uniramia

Phylum Arthropoda

Millipedes

Class Diplopoda

Two pairs of appendages per segment

Subphylum Uniramia

Phylum Arthropoda

Insects

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

24 orders

Praying mantis

Order Mantodea

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Walking stick

Order Phasmatodea

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Dragonfly

Order Odonata

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Cockroach

Order Blattodea

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Butterfly, moth

Order Lepidoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Cicada, aphid, leaf hooper

Order Homoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Beetle

Order Coleoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Grasshopper, cricket, katydid, locust

Order Orthoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

True bugs, stink big, beg bug, water strinder

Order Hemiptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Flea

Order Siphonaptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Bee, wasp, ant

Order Hymenoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Earwig

Order Dermaptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Termite

Order Isoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Stonefly

Order Plecoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Mayfly

Order Ephemeroptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Lacewing

Order Neuroptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Sucking lice

Order Anoplura

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Biting lice

Order Mallophaga

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Scopionfly

Order Mecoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Book lice

Order Psocoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Caddisfly

Order Trichoptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Snakefly

Order Raphidioptera

Class Insecta

Subphylum Uniramia

Phylum Arthropoda

Bryozoans

“moss animal”

Phylum Ectoprocta

Lophophore

Brachiopods

Phylum Branchiopoda

Body enclosed in two shells

Lophophore

Phylum Echinodermata

Echinoderms

5 classes: Crinoidea - Asteroidea - Ophiuroidea - Echinoidea - Holothuroidea