Assertion: cockle's shell | /r/HasProperty | oval
Facets:
value: almost
type: DEGREE
value: with concentric ridges
type: OTHER
value: in most surface-burrowing species
type: OTHER
Source sentences:
text: The shell is oval, and covered by ribs, which are flattened in the middle part of the shell.
text: In most surface-burrowing species (the hypothetical ancestral habit) the shells are small, spherical or oval, with equal left and right valves.
text: The shell of Venerupis philippinarum is elongate, oval, and sculptured with radiating ribs.
text: Shells are almost oval with concentric ridges, and range from white to light brown in colour, sometimes with darker zigzag markings; K.scalarina are pale yellow and K.rhytiphora, greyish-purple.
text: The shell can be oval, elliptical, shaped like a wedge or like a sheath.