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Beam trawls used in the Transect Program do not adequately
collect burrowing organisms,
so the distribution and abundance of this species is not well documented.
This species differs from C. luetkeni because of the greater inflation of the petal area and
rounded edges. Also, the test is more elongate. Test diameter is ~10.5 cm.
This species has a raised central portion of the disc.
It is a nice 'intermediate' form between a sand dollar
and a sea biscuit.