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

# Sense organ on upper side of head in many branchiopods. # Sense organ on upper side of cephalon. # Frontal organ. # Dorsal organ. # Unpaired median sensory organ located on dorsal surface of head; ...

frontal organs

Animals; Crustaceans

# Sensory cells on anterior surface of cephalon. # Sensory cells or setae on front surface of heads on some branchiopods, copepods, and decapods. # General term for any of several similar sensory ...

endophragm

Animals; Crustaceans

# Septum formed by cephalic and thoracic apodemes. # Wall formed by union of apposed apodemes forming part of endoskeleton of some decapods. # In cephalothorax, septum of endoskeleton formed at ...

carapace spine

Animals; Crustaceans

# Sharp projection of carapace important for classification — chief types: * antennal. Spine on front margin of carapace slightly below orbit. * branchiostegal. Spine on front margin of carapace or ...

mastigobranch

Animals; Crustaceans

# Slender respiratory at base of epipod. # Slender respiratory process at base of epipod(ite). # In basal segment (coxa) of thoracic appendage (thoracopod), that part of epipodite which is not ...

afferent respiratory channels

Animals; Crustaceans

# Channels through which water passes to the gills, that open in front of the chelipeds and behind the pterygostomial region except in some oxystomata where they open at the sides of the endostome. # ...

caudal fan

Animals; Crustaceans

# Combination of laterally expanded uropods and telson turned backwards to form powerful swimming structure or means of steering and balancing. # Powerful swimming structure formed of laterally ...