Dear Shellers,
 
        Could any expert describe the exact geographical distribution of
Siphonaria pectinata?
        It is a very common supratidal specie here in Portugal, and I know to,
that it extends it's range to the Canary Islands and Mediterranean, but
does it's distribution reach South Africa or Caribbean ?
        I am also curious! What does it eat? Is this specie a grazer?
 
Maybe some one can forfill my curiosity !!!
 
Best Shelling regards to all
 
Carlos Afonso