Assertion: mollusk's shell | /r/HasProperty | absent
Facets:
value: in some species
type: OTHER
value: completely
type: DEGREE
Source sentences:
text: Slug, any mollusk of the class Gastropoda in which the shell is reduced to an internal plate or a series of granules or is completely absent.
text: This shell may be absent in some species.
text: This shell may be absent in some species.
text: Shell is either internal or absent, the only exception being species of sub-class Nautiloidea eg Nautilus.
text: In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains.