Answer: uropod

AnswerCrossword Clue
UROPODLimb, as of a lobster.
UROPODLobster's limb
uropodabdominal limb of an arthropod, esp. one of those on either side of the telson, as in a lobster
uropodeither of the flattened lateral appendages of the last abdominal segment of a crustacean
uropodan abdominal limb of an arthropod
uropodabdominal appendage of a crustacean