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

# In cirripeds (Balanomorpha), groove on outer surface of tergum extending to apex in line with spur. # Barnacle plate feature: in unstalked form, groove on outer surface of tergum, in line with spur ...

longitudinal septum

Animals; Crustaceans

# In cirripeds (Balanomorpha), wall of tubes disposed normal to inner and outer laminae of compartment plate separating them. # Partition disposed normal to inner and outer laminae of compartmental ...

apicobasal ridge

Animals; Crustaceans

# In cirripeds longitudinal feature which divides tergal slip (tergum) from rest of valve.

basilateral angle

Animals; Crustaceans

# In cirripeds, intersection of lateral and tergal margins of scutum. # Basitergal angle.

compartment plate

Animals; Crustaceans

# In sessile cirripeds (Verrucomorpha, Balanomorpha), rigid articulate skeletal element (valve) forming part of shell wall. # One of several rigidly articulated plates forming wall in sessile ...

cardiac notch

Animals; Crustaceans

# Indentation on posterior margin of carapace (e.g., some Alpheidae). # Indentation on posterior margin of carapace. # In shrimp-like (natantian) decapod, notch on posterior margin of carapace.

paired receptacles

Animals; Crustaceans

Invaginated into the cephalothoracic cavity, opening through well protected slits usually on anterior border of sternite XIV, or on anterior part of XIII.