13 Terms
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Crustaceans
Any member of the class of arthropods that includes lobsters, crabs, shrimps, wood lice, water fleas, and barnacles.
Industry: Animals
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Crustaceans
family
Animals; Crustaceans
A major subdivision of an order, suborder or infraorder in the classification of animals, usually consisting of several genera.
holomerodont hinge
Animals; Crustaceans
A merodont hinge in which all elements are crenulate and negative on one valve, positive on the other.
amphidont hinge
Animals; Crustaceans
A modified entomodont hinge in which the four elements are well differentiated (Families Hemicytheridae, Trachyleberididae).
sensoriform filament
Animals; Crustaceans
A modified setal element typically with thin walls and either blunt ending (vermiform), or ending in brush of fine setules (brush-like), found on the maxilla and sometimes maxillipeds of calanoids.
delayed development
Animals; Crustaceans
A moulting sequence producing one or more larval forms showing little or no morphological progress towards a more advanced stage.
retrostylet
Animals; Crustaceans
A movable stylet projecting posteriorly from the margin of the dorsal cephalic shield.
