Pleocyemata
Pleocyemata is a suborder of decapod crustaceans, erected by Martin Burkenroad in 1963. Burkenroad's classification replaced the earlier sub-orders of Natantia and Reptantia with the monophyletic groups Dendrobranchiata (prawns) and Pleocyemata. Pleocyemata contains all the members of the Reptantia (including crabs, lobsters, crayfish, and others), as well as the Stenopodidea (which contains the so-called "boxer shrimp" or "barber-pole shrimp"), and Caridea, which contains the true shrimp.
Species
eggbærereker
Suborder
- PhylumArthropoda
- ClassMalacostraca
- OrderDecapoda
Habitatmarine, brackish, freshwater
Reptantia é uma antiga subordem de crustáceos decápodes que incluía as lagostas sensu latu, os caranguejos e, em geral, os outros decápodes demersais, capazes de andar com as suas patas, ao contrário dos camarões que eram agrupados na subordem Natantia. Em 1963, foram propostas (e são geralmente aceites) duas outras subordens, Dendrobranchiata e Pleocyemata, divididas de acordo com a estrutura das brânquias e restantes apêndices e com a forma de desenvolvimento larvar. Na subordem Dendrobranchiata, são incluídos os camarões com brânquias ramificadas e que não incubam os ovos (infraordens Penaeoidea e Sergestoidea) e na Pleocyemata, os restantes camarões (infraordens Caridea e Stenopodidea), lagostas, caranguejos e restantes decápodes.
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Article
4 sectionsContents
- Anatomy
- Systematics
- References
- External links
Pleocyemata is a suborder of decapod crustaceans, erected by Martin Burkenroad in 1963. Burkenroad's classification replaced the earlier sub-orders of Natantia and Reptantia with the monophyletic groups Dendrobranchiata (prawns) and Pleocyemata. Pleocyemata contains all the members of the Reptantia (including crabs, lobsters, crayfish, and others), as well as the Stenopodidea (which contains the so-called "boxer shrimp" or "barber-pole shrimp"), and Caridea, which contains the true shrimp.
==Anatomy== All members of the Pleocyemata are united by a number of features, the most important of which is that the fertilised eggs are incubated by the female, and remain stuck to the pleopods (swimming legs) until the zoea larvae are ready to hatch. It is this characteristic that gives the group its name. Pleocyemata also possess a lamellar gill structure as opposed to the branches found in the Dendrobranchiata.