Schmitt, Waldo L. Department of Zoology, Smithsonian Institution, Washington, DC.
McLaughlin, Patsy A. Shannon Point Marine Center, Western Washington University, Anacortes, Washington.
Feldmann, Rodney M. Department of Geology, Kent State University, Kent, Ohio.
Last reviewed:December 2019
- Distribution and Ecology
- General Morphology
- Digestive system
- Circulatory system
- Respiratory system
- Nervous system
- Organs of special sense
- Glands and glandular systems
- Reproductive system
- Physiological Mechanisms
- Molting (ecdysis)
- Autotomy and regeneration
- Geologic History
- Related Primary Literature
- Additional Reading
An extremely diverse, species-rich group of arthropods that have inhabited marine environments since the beginning of the Cambrian Period. In some ways, they may be thought of as the marine equivalents of the insects. Within the marine realm, the crustaceans occupy as varied a spectrum of habitats as the insects inhabit on land. The Crustacea currently are regarded as a subphylum in the monophyletic phylum Arthropoda, although debate about this rank continues among carcinologists. See also: Arthropoda
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