types:
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chelicera
either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing
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mouthpart
any part of the mouth of an insect or other arthropod especially one adapted to a specific way of feeding
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fang
an appendage of insects that is capable of injecting venom; usually evolved from the legs
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chela, claw, nipper, pincer
a grasping structure on the limb of a crustacean or other arthropods
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parapodium
one of a pair of fleshy appendages of a polychete annelid that functions in locomotion and breathing
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fin
organ of locomotion and balance in fishes and some other aquatic animals
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pleopod, swimmeret
one of the paired abdominal appendages of certain aquatic crustaceans that function primarily for carrying the eggs in females and are usually adapted for swimming
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limb
one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper
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dactyl, digit
a finger or toe in human beings or corresponding body part in other vertebrates
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toxicognath
either of a pair of poison fangs in the modified front pair of legs of the centipede
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hind limb, hindlimb
a posterior appendage such as a leg or the homologous structure in other animals
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forelimb
the front limb (or the homologous structure in other animals, such as a flipper or wing)
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flipper
the flat broad limb of aquatic animals specialized for swimming
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dorsal fin
unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance
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pectoral fin
either of a pair of fins situated just behind the head in fishes that help control the direction of movement
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pelvic fin, ventral fin
either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
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caudal fin, tail fin
the tail of fishes and some other aquatic vertebrates
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leg
a human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle
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crus
the leg from the knee to foot
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leg
a structure in animals that is similar to a human leg and used for locomotion
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thigh
the part of the leg between the hip and the knee
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arm
a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb
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cubitus
the arm from the elbow to the fingertips
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forearm
the part of the superior limb between the elbow and the wrist
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minimus
the fifth digit; the little finger or little toe
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finger
any of the terminal members of the hand (sometimes excepting the thumb)
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toe
one of the digits of the foot
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mandible
either of the two mouthparts used by arthropods to hold and bite food