Assertion: cephalopod's shell | /r/HasProperty | mollusc
Facets:
value: usually
type: DEGREE
Source sentences:
text: The term "shellfish" is defined in the New Shorter Oxford English Dictionary as "any aquatic invertebrate animal whose outer covering is a shell, usually a mollusc (as an oyster, a winkle, a mussel, etc.) or a crustacean (as a crab, a prawn, a shrimp, etc.), especially one regarded as edible.
text: While the other cephalopods sport some form of inner or outer shell like their relatives the mollusks, the octopus has none.
text: The Hyolitha are a class of extinct animals with a shell and operculum that may be molluscs.