Harpacticoida

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Harpacticoida
Harpacticoid copepod
Scientific classification
Kingdom: Animalia Phylum: Arthropoda Subphylum: Crustacea Class: Maxillopoda Subclass: Copepoda Order: Harpacticoida G. O. Sars, 1903
Families
See text

Harpacticoida is an order of copepods, in the Subphylum Crustacea. This order comprises 463 genera and about 3,000 species. Members of it are benthic copepods found throughout the world in the marine environment (most families) and in fresh water (essentially the Ameiridae, Parastenocarididae and the Canthocamptidae). A few of them are planktonic or live in association with other organisms. Harpacticoida represents the second-largest meiofaunal group in marine sediment milieu, after nematodes.

Harpacticoids are distinguished from other copepods by the presence of only a very short pair of first antennae. The second pair of antennae are biramous, and the major joint within the body is located between the fourth and fifth body segments. They typically have a wide abdomen, and often have a somewhat wormlike body.^[1]

[edit] Families

Adenopleurellidae Aegisthidae Ambunguipedidae Ameiridae Ancorabolidae Argestidae Balaenophilidae Cancrincolidae Canthocamptidae Canuellidae Cerviniidae Chappuisiidae Cletodidae Cletopsyllidae Clytemnestridae Cristacoxidae Cylindropsyllidae Darcythompsoniidae

Diosaccidae Ectinosomatidae Euterpinidae Hamondiidae Harpacticidae Huntemanniidae Laophontidae Laophontopsidae Latiremidae Leptastacidae Leptopontiidae Longipediidae Louriniidae Metidae Miraciidae Neobradyidae Normanellidae Novocriniidae

Orthopsyllidae Paramesochridae Parastenheliidae Parastenocarididae Peltidiidae Phyllognathopodidae Porcellidiidae Pseudotachidiidae Rhizothricidae Rotundiclipeidae Styracothoracidae Superornatiremidae Tachidiidae Tegastidae Tetragonicipitidae Thalestridae Thompsonulidae Tisbidae

[edit] References

[edit] External links

• Harpacticoida, Guide to the marine zooplankton of south eastern Australia, Tasmanian Aquaculture and Fisheries Institute

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