Andrew,  Why do you copy everyones paragraphs and put it back on Conch-L
twice?  Even though Some of us know who wrote it, you take our names off and
use it as your own.  Why?????  Not flaming just curious.

Bob Lipe

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----- Original Message -----
From: "Andrew Grebneff" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, June 06, 2003 7:07 PM
Subject: Re: Exciting boring snails


> >I've seen many shells that have been eaten by an octopus that has bored
> >holes in the shells, especially Cypraea.  Almost all holes in cowries are
> >done by octopus.  I never heard of Marginellas boring holes, thats
something
> >new to me.
>
> Octopus borings are quite distinctive. Acutely colical, with
> scalloped edges and often radular scrapemarks on the surrounding
> shell surface; the actual perforation is very small.
>
> >Moon snails make a concave boring.  (Oyster) drills make a tubular hole.
>
> A generalization which may not be accurate... if some muricids make
> tapered holes. And any naticid boring would have to be mainly
> cylindrical if it penetrated an extremely thick shell.