Astacidea
Sign in to saveAstacidea is an infraorder of decapod crustaceans including lobsters (but not "lobsters" such as the spiny lobster etc.), crayfish, and their close relatives.
Species
crawfish
Infraorder
- PhylumArthropoda
- ClassMalacostraca
- OrderDecapoda
via
Museum specimens
- Specimen records
- 42
- Family
- Astacidae
- Collections
- CAS, ALMNH, FMNH, CMN
- Recorded in
- United States, Nicaragua, Burma [Union Of Myanmar], Guam, British Virgin Islands, Vanuatu, Australia, Japan
Wikidata facts
Show 5 more facts
- Commons category
- Astacidea
- taxon name
- Astacidea
- taxon rank
- infraorder
- topic's main category
- Category:Astacidea
- taxon common name
- Crayfishes and Lobsters
via Wikidata · CC0
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Encyclopedic overview
5 sectionsContents
- Description
- Distribution
- Classification
- Taxonomy
- References
Astacidea is an infraorder of decapod crustaceans including lobsters (but not "lobsters" such as the spiny lobster etc.), crayfish, and their close relatives.
==Description== The Astacidea are distinguished from most other decapods by the presence of chelae (claws) on each of the first three pairs of pereiopods (walking legs), the first of which is much larger than the remaining two pairs. The last two pairs of pereiopods are simple (without claws), except in Thaumastocheles, where the fifth pereiopod may have "a minute pincer".
Excerpted from Wikipedia’s “Astacidea” article, available under the CC BY-SA 4.0 licence.