>I've picked up quite a few rustica, deltoides, haemastoma type critters and
>never gotten 'purpled'.  Am I doing something wrong?  Sea Hares?  That's
>another story.

Purpura patula was effective in my experience, and apparently Abbott's,
from the mention in American Seashells.  Perhaps you're too gentle in
picking them up.  J

David Campbell

"Old Seashells"

Department of Geological Sciences
CB 3315 Mitchell Hall
University of North Carolina at Chapel Hill
Chapel Hill NC 27599-3315
USA

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"He had discovered an unknown bivalve, forming a new genus"-E. A. Poe, The
Gold Bug