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Phylum NEMERTEA – nemerteans, nemertines - page 2 / 6

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ARTHROPODA

Arguably the largest phylum in the world, 750K spp. described. Arguably the most successful.

ARTHROPODA

Subphylum CHELICERATA

Class MEROSTOMATA

Subclass Xiphosura - Limulus

Class ARACHNIDA

Order Araneae – Spiders, Latrodectus, Loxosceles

Order Acarina – Ticks and mites, vectors for diseases

Class PYCNOGONIDA – Sea spiders, often blood suckers.

Subphylum UNIRAMIA

Class INSECTA

Order Mallophaga – Chewing lice

Order Anoplura – Sucking lice, vectors for diseases

Order Hemiptera – true bugs, vectors for diseases

Order Diptera – Mosquitoes, flies, parasitic spp., vectors for diseases

Order Hymenoptera – wasps, many parasitic spp., biocontrol agents

Order Siphonaptera – fleas, sticktights on birds, vectors for diseases

Subphylum CRUSTACEA

Class BRANCHIURA – Argulus, fish lice

Class COPEPODA – Ergasilus, Lernea, Caligus, many genera. "Gill maggots"

Class CIRRIPEDIA

Order Thoracica – "ordinary barnacles," Octolasmis, Chelonibia

Order Ascothoracica – coral and echinoderm parasites

Order Rhizocephala – Sacculina, Loxothylacus, Heterosaccus

Class MALACOSTRACA

Order Isopoda – fish lice, gill swellers

Suborder Flabellifera

Aegidae – micropredators

Cymothoidae – parasitic on fish,

Carolina: Anilocra, Cirolana (free living family), Renocila, Nerocila, Lironeca

Suborder Epicaridea

Bopyridae – largest family, all parasitic on crustaceans

Entoniscidae – internal parasites of crustaceans

Order Amphipoda – Cyamus, whale parasites

Order Decapoda – Pinnotheridae, symbiotic shrimp

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