Assertion: crab's shell | /r/HasProperty | smooth
Facets:
value: to sinuous sutures
type: TRANSITIVE-OBJECT
value: with compressed or depressed whorl sections
type: OTHER
value: generally
type: DEGREE
Source sentences:
text: Nautilidae, both extant and extinct, are characterized by involute or more or less convolute shells that are generally smooth, with compressed or depressed whorl sections, straight to sinuous sutures, and a tubular, generally central siphuncle.