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

# Cephalic appendages next behind mandible, serving as mouth part. # First maxilla; mouthparts immediately posterior to mandibles. # One of a pair of the 4th cephalic appendages, usually serving as ...

mesobranchial lobe

Animals; Crustaceans

Intermediate part of branchial region of decapod (brachyuran) carapace.

ramus

Animals; Crustaceans

# A branch of an appendage, e.g. the exopood or endopod. # A branch of an appendage. # Branch of appendage or other structure (e.g., flagellum). # Branch of limb or other appendage (e.g., caudal ...

labrum

Animals; Crustaceans

# A bulbous structure lying next to the epistome and bordering the anterior margin of the oral opening. # An unpaired, flat segment of the cephalon that articulates with the clypeus, and anteriorly ...

soft crab

Animals; Crustaceans

A crab that has just shed its shell and has not yet hardened its new shell; may be any species of crab, but the commercial soft-shelled crab of the Atlantic and Gulf coasts is the blue crab, ...

appendix masculina

Animals; Crustaceans

# A lappet inserted between the appendix interna and the mesial margin of the second pleopod of most male shrimps. The presence or absence of an appendix masculina is the easiest way to distinguish ...