19 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
subesophageal mass
Animals; Crustaceans
Concentration of nerve tissue below (posterior to) esophagus. Connected to supraesophageal ganglion by pair of esopha-geal connectives. Consists of ganglia of mandibles, maxillules, maxillae, ...
aesthetasc seta
Animals; Crustaceans
Confined to antennule; thin-walled, smooth, non-tapering seta, rounded tip; without pore; annulus not evident.
median protuberance
Animals; Crustaceans
Conspicuous elevation, sometimes platelike, arising from the posteromedian part of the penultimate (XIII) thoracic sternite.
incisor
Animals; Crustaceans
Cutting process of the mandible, usually dentate, sometimes modified for piercing.
obliquely erect
Animals; Crustaceans
Directed obliquely, more or less at 45 degrees to basal surface.
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