Useful english dictionary. 2012.
Crustacea — A very large class of aquatic animals (phylum Arthropoda) with a chitinous exoskeleton and jointed appendages; e.g., the crab, lobster, crayfish, shrimp, isopods, ostracods, and amphipods. Some, such as certain copepods, are parasitic; others… … Medical dictionary
Crustacea — noun class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas • Syn: ↑class Crustacea • Derivationally related forms: ↑crustaceous • Hypernyms: ↑class … Useful english dictionary
Crustacea — Class Branchiopoda Subclass Phyllopoda Subclass Sarsostraca Class Remipedia Order Enantiopoda Order Nectiopoda Class Cephalocarida Order Brachypoda … Enciclopedia Universal
class — A major subdivision of a phylum in the classification of animals, usually consisting of several subclasses and orders [Bliss, 1982] … Crustacea glossary
Crustacea — crus·ta·cea || krÊŒ steɪʃjÉ™ n. class of hard shelled animals with jointed limbs (includes crabs, shrimp, etc.) … English contemporary dictionary
caudal process — (Class Ostracoda): Posterior extension of carapace. (Syn. keel) [Cohen, Peterson, and Maddocks, in press]. (Class Ostracoda): Posterior projection of valve border generally above midheight, or posteroventral, directed upward [McLaughlin, 1980].… … Crustacea glossary
free margin — (Class Ostracoda): All parts of margin except hingement [McLaughlin, 1980]. (Class Ostracoda): Margin [Stachowitsch, 1992]. (Class Ostracoda): The perimeter of the valves (exclusive of the hinge region) where valves are in contact [Cohen,… … Crustacea glossary
vestibule — (Class Ostracoda): Along inner margin of valve, space formed between outer lamella and thickened part (duplicature) of inner lamella [Stachowitsch, 1992]. (Class Ostracoda): In Podocopa a marginal cavity between the outer valve lamella and… … Crustacea glossary
branchial plate — (Class Ostracoda): Enlarged, flattened modification of outer branch (exopod) of either mandible, maxillule, maxilla, or first thoracic limb. Bears long setae along margin and maintains water circulation within carapace. (Syn. vibratory plate,… … Crustacea glossary
brush-shaped organ — (Class Ostracoda): Rudimentary third pair of thoracopods (ninth paired appendage of body). Consists of basal part (stem) bearing distal cluster of hairs. Typically restricted to male and considered to be sensory. (Syn. brush like structure)… … Crustacea glossary
