Crustaceans

Crustaceans

Any member of the class of arthropods that includes lobsters, crabs, shrimps, wood lice, water fleas, and barnacles.

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alice1

Beijing, China

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Crustaceans

gnathal

Animals; Crustaceans

Of the biting or grinding surface of the mandible.

On carapace of crab-like (brachyuran) decapod, one (or one in a series of) projection(s) along each anterolateral margin. (acute, conical, obtuse, quadrangular, spiniform, subtriangular; ciliated, ...

frontal lobe

Animals; Crustaceans

On dorsal surface of carapace, bell-shaped prominence marking anterior margin of head. Bears ocular lobes anteriorly and is adjoined laterally and anteriorly by pseudorostrum.

carpoprodus

Animals; Crustaceans

On inner branch (endopod) of thoracopod, multisegmented unit formed by carpus and propodus.

natatory lobe

Animals; Crustaceans

On last pair of thoracic appendages (fourth thoracopods), lobe-like projection of protopod. Serves in swimming.

respiratory area

Animals; Crustaceans

On underside of carapace, one of four areas characterized by thin cuticle and functioning as a respiratory surface. One may distinguish two smaller anterior respiratory areas (flanking maxillae) and ...