Assertion: egg cockle | /r/HasProperty | laevicardium substriatum
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Source sentences:
text: Common species on the Pacific coast of North America include the giant Pacific cockle (Trachycardium quadragenarium), which attains a diameter of 15 centimetres; the common Pacific egg cockle (Laevicardium substriatum), 2 centimetres; the giant Pacific egg cockle (L. elatum), 15 centimetres; and the fucan cockle (Clinocardium fucanum), 2.5 centimetres.