Obrigado Zé,

However A. guppyi is a very small shell - as you say restricted to FL. These others are larger
shells, found in Brazil mostly.

Um abraço,

Marcus

________________________________________
De: Conchologists List [mailto:[log in to unmask]] Em nome de "José H. Leal"
Enviada em: quarta-feira, 14 de novembro de 2007 15:08
Para: [log in to unmask]
Assunto: Re: [CONCH-L] Americardia media

Two well-recognized Florida species are, first, as you mentioned, Americardia media (Linnaeus,
1758), http://www.malacolog.org/search.php?mode=details&waspid=13654, which occurs on both coasts of
Florida, and second, Americardia guppyi (Thiele, 1910)
http://www.malacolog.org/search.php?mode=details&waspid=13652, which I believe is restricted, in its
shallow-water Florida distribution, to the East coast.

The Americardia species sometimes found on the shores of Sanibel (usually unpaired valves) is A.
media http://www.shellmuseum.org/Sanibel/shells_americardia.html; the main distinguishing feature is
the "pinched" aspect on its posterior region, which is lacking in A. guppyi.

To make a long story short, if you walk the beaches of Broward or Miami-Dade counties (or snorkel in
very shallow water, as I do once in a while there), chances are you'll find literally lots of loose
valves of A. guppyi; here on Sanibel you'll find A. media, but not as often.

Cheers e um abraço,

José
________________________
On Nov 14, 2007, at 7:21 AM, Marcus Coltro wrote:


I always had some doubts about Americardia media - is there any other species related to it from
Western Atlantic?

See these images (I apologize for posting a link to my website, but I have here several pictures of
specimens coming from different places)

http://www.femorale.com.br/shellphotos/detail.asp?species=Americardia+media+%28L%2E%2C+1758%29

and

http://www.femorale.com.br/shellphotos/detail.asp?species=Americardia+cf%2E+media+%28L%2E%2C+1758%29



Any suggestions?

Thanks

____________________________________________________________________

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