Dear Patty,

All the answers on these questions you can find in:
Christiaens, J., 1973. Revision du genre Patella (Mollusca, Gastropoda).
Bull. Mus. Nat. Hist Nat. Paris, (3) 182, Zool. 121: 1305-1392.
This work contains also corrections to the monograph published by Powell at
almost the same time.
He wrote also an extensive paper on the Patellidae of the Atlantic Islands
off West Africa.
Unfortunately I do not have Christiaens works at hand at home, so I can not
give you the answers at the moment.
By the way Christiaens is still active in the field of limpet-like shells.
Best regards,

Henk K. Mienis

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----- Original Message -----
From: "Patty Jansen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 30, 2002 2:04 PM
Subject: some limpet questions


> Dear all,
>
> Here I am again with my limpets.
>
> I have some more questions:
>
> 1. Does anyone know the original genus of Patella nigra da Costa, 1771
>
> 2. Does anyone know more about the species Patella adansonii Dunker 1853.
> This species is said to be from Angola according to the world review of
the
> Patellid limpets by Powell (1973), but I cannot find any further reference
> to it regarding it's range and prevalence
>
> 3. and what about P. picta said to be from the Azores?
>
> regards
>
> Patty
>
>