Difference between revisions of "Crustacea"
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{{Definition|title=Crustacea, crustaceans | {{Definition|title=Crustacea, crustaceans | ||
| − | |definition= | + | |definition=A group of freshwater and saltwater invertebrates with jointed legs and a hard shell of chitin. }} |
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| + | ==Notes== | ||
| + | Subphylum of arthropods, considered as a class in older classifications. | ||
| + | They are mainly aquatic, gill-breathing animals, such as crabs, lobsters and shrimps. The body is divided into a head bearing five pairs of appendages (two pairs of pre-oral sensory feelers and three pairs of post-oral feeding appendages) and a trunk and abdomen bearing a variable number of often biramous appendages wich serve as walking legs and gills. Crustacea often have a hard carapace of shell.<ref name="Hendersons"> Lawrence, E. (2005). ''Henderson’s dictionary of biology.'' Pearson Education Limited, 13th ed., Harlow. 748 p. </ref> | ||
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==References== | ==References== | ||
<references/> | <references/> | ||
Latest revision as of 13:16, 1 March 2022
Definition of Crustacea, crustaceans:
A group of freshwater and saltwater invertebrates with jointed legs and a hard shell of chitin.
This is the common definition for Crustacea, crustaceans, other definitions can be discussed in the article
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Notes
Subphylum of arthropods, considered as a class in older classifications. They are mainly aquatic, gill-breathing animals, such as crabs, lobsters and shrimps. The body is divided into a head bearing five pairs of appendages (two pairs of pre-oral sensory feelers and three pairs of post-oral feeding appendages) and a trunk and abdomen bearing a variable number of often biramous appendages wich serve as walking legs and gills. Crustacea often have a hard carapace of shell.[1]
References
- ↑ Lawrence, E. (2005). Henderson’s dictionary of biology. Pearson Education Limited, 13th ed., Harlow. 748 p.
