Crossword Clue:

Snail shell shape

AnswerCrossword Clue
SPIRALSnail shell shape
TEARDROPTree snail shell shape
VALVESnail shell
SEASLUGShell-less snail
ABALONELarge snail with a bowl-like shell.
ABALONESea snail with a mother-of-pearl shell