Answer: murex

AnswerCrossword Clue
MUREXWhelk yielding a purple dye.
MUREXPurplish red
MUREXDye-producing gastropod
MUREXGastropod genus
MUREXSpiny-shelled gastropod
MUREXGastropod
murexa marine mollusc
murexany marine gastropod of the genus Murex, common in tropical seas, certain species of which yield the royal purple dye valued by the ancients
murexpurplish red
murexshell used as a trumpet, as in representations of Tritons in art