Dear Conch-L'ers,

This afternoon, while strolling along the high tide line along the mud
flats bordering Anaheim Bay (S. California), I encountered a good number
of specimens of Littorina littorea (L.).  While it isn't hard to figure
out how they may have been introduced, I am wondering if there are other
reported occurrences in California.

Thanks,

Phil Liff-Grieff
La Crescenta, California