the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Prosobranchiata > section Siphonostomata > family Cypraeidae > member of genus Radius (2)
In full weaver's shuttle, a shuttle-shell, esp. Radius volva; also, the shell of this gastropod.
a gastropod of the genus Radius.