Assertion: gastropod's shell | /r/HasProperty | reduced
Facets:
value: greatly
type: DEGREE
value: except for the nautilus
type: OTHER
value: completely
type: DEGREE
Source sentences:
text: Stylommatophores have two pairs of tentacles, with the eyes at the end of the posterior pair, and the shell may be reduced or lost altogether.
text: Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or the shell is reduced such that the body cannot be retracted within (semi-slug).
text: The shells of some gastropods have been reduced or partly reduced during their evolution.
text: The shell and mantle cavity are reduced or lacking in most species.
text: The shell in this species is reduced: the body cannot be fully retracted into the shell.
text: The shell of the Spanish slug is completely reduced, existing only as internal microscopic calcareous granules.
text: Except for the nautilus, the shell is greatly reduced and found internally.
text: Usually gastropods have single, spirally coiled shell but shell is reduced or lost in some groups.