Answer: limpet

AnswerCrossword Clue
LIMPETTenacious clinger
LIMPETClinging mollusk
LIMPETAquatic snail
LIMPETRelative of a barnacle.
LIMPETShellfish.
LIMPETClinging shellfish.
LIMPETRock-clinging mollusk
LIMPETCousin of a conch
LIMPETMollusk with a low conical shell
LIMPETTight-clinging mollusk
limpetsmall shellfish that sticks to rocks
limpeta marine gastropod mollusc