Assertion: giant clam's shell | /r/HasProperty | small
Facets:
value: in most surface-burrowing species
type: OTHER
Source sentences:
text: In most surface-burrowing species (the hypothetical ancestral habit) the shells are small, spherical or oval, with equal left and right valves.
text: In species where the shell is small compared to the size of the body, more of the mantle shows.