Hallo Paolo
The ecology of Nerita polita is different from that of other epilithic
nerites.  At least this is my impression from fieldwork on Rodrigues in the
Indian Ocean.  I found N. polita living buried just below the surface in
sand, adjacent to an embedded rock.  Maybe it is attached to the rock below
the surface.  At low tide the N. polita come to the surface and it seems
they sit there for a while before reburying before the tide comes in.  This
is what I have deduced must happen - I did not sit it out and watch them for
the duration!
Jan Light
Godalming, England

----- Original Message -----
From: "Paolo G. Albano" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, January 04, 2005 12:19 PM


> During my trip to the Maldives in August 2004, I
> observed a strange fact which I here report hoping
> someone can help me explaining it.
>
> 1. I found a live Drupa lobata with its aperture
> upwards on sand near hard substrates,  It was
> motionless.  Put in acquarium it reacted and allowed
> photography of the animal.
>
> 2. A live nerita polita stranded on the beach, but
> when put in a small box with seawater it promptly was
> resurrected and moved around actively.
>
> They seemed dead (and they would have certainly died
> in the conditions they were found) but they were not.
>
> Any ideas?
>
> Thanks,
> Paolo
>
> =====
> Paolo G. ALBANO
> Bologna, ITALY
> Webmaster of Società Italiana di Malacologia website at
> http://www.aicon.com/sim
>
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