Dear Conch-L experts,
I have small (4mm coiled diameter; aperture ~1mm) worm shells attached to
Chlamys hastata from about 67 feet off the San Juan Islands, Washington.
They are dull white, annulated with coarse, close set ribs, and have
white, round opercula.  They are tightly coiled, with the last whorl
often elevated above the shell it is attached to.  Any ideas as to
identity?
I have troubles with using Abbott for this group.  He seems to never be
quite in agreement with my shells...

Allen Aigen  NYC
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