Cyclopoida

Order of crustaceans


title: "Cyclopoida" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["cyclopoida", "crustacean-orders"] description: "Order of crustaceans" topic_path: "general/cyclopoida" source: "https://en.wikipedia.org/wiki/Cyclopoida" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Order of crustaceans ::

| image = Cyclops.jpg | image_caption = Cyclops sp. | display_parents = 2 | taxon = Cyclopoida | authority = Burmeister, 1834 | subdivision_ranks = Families | subdivision = See text

The Cyclopoida are an order of small crustaceans from the class Copepoda. Like many other copepods, members of Cyclopoida are small, planktonic animals living both in the sea and in freshwater habitats. They are capable of rapid movement. Their larval development is metamorphic, and the embryos are carried in paired or single sacs attached to first abdominal somite.

Distinguishing features

Cyclopoids are distinguished from other copepods by having first antennae shorter than the length of the head and thorax, and uniramous second antennae. The main joint lies between the fourth and fifth segments of the body.

Taxonomy

Cyclopoida contains 30 families:

Several more families are included in suborder Poecilostomatoida, a temporary name for the "poecilostome lineage" The Poecilostomatoida were previously treated as a separate order, but molecular phylogenies show that this lineage is nested within the Cyclopoida.

References

References

  1. J. K. Lowry. (October 2, 1999). "Cyclopoida (Copepoda, Maxillipoda)". [[Australian Museum]].
  2. Barnes, Robert D.. (1982). "Invertebrate Zoology". Holt-Saunders International.
  3. Geoff Boxshall & T. Chad Walter. (2018). "Cyclopoida". [[World Register of Marine Species]].
  4. Geoff Boxshall & T. Chad Walter. (2018). "Poecilostomatoida". [[World Register of Marine Species]].
  5. (2017). "Molecular Phylogeny and Revision of Copepod Orders (Crustacea: Copepoda)". [[Scientific Reports]].

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cyclopoidacrustacean-orders