purpuroid
/ˈpəːpjʊrɔɪd/Zoology
adjective
Relating to, resembling, or characteristic of a gastropod mollusc of the genus Purpura or related genera.
Origin
Mid 19th century; earliest use found in Philip Carpenter (1819–1877), social reformer and conchologist. From scientific Latin Purpura, genus name + -oid.