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

accessory gland

Animals; Crustaceans

In male reproductive system, pair of slender glands in thorax under heart; fused anteriorly and opening at tips of penes (via ducts running parallel to sperm ducts).

spermatophoric sac

Animals; Crustaceans

In male reproductive system, somewhat expanded distal section of vas deferens in which spermatophores are produced.

hinge joint

Animals; Crustaceans

In male, modified joint in midregion of geniculate type of antennule to fold down on basal half, antennule serves as grasping organ during copulation.

pars centralis

Animals; Crustaceans

In mandible, central part between lacinia mobilis and molar process. Typically with spine row or with cutting or grinding structures.

horn

Animals; Crustaceans

In parasitic copepod, one of two to four horn-like projections of head. Used in attachment to host. (branched, unbranched).

rudimentary oostegite

Animals; Crustaceans

In second maxillipeds of female, flattened plate extending from first segment (coxa). Posterior margin bears series of of elongate setae extending into brood chamber.

postostral carina

Animals; Crustaceans

In shrimp-like (natantian) decapod, narrow, longitudinal ridge along dorsal midline of carapace; originates behind rostrum and typically extends almost to posterior end of carapace. Usually with ...