Shell Identification requested by Marie Pauline Sauzier

[david touitou]

Please tell me what this double Harp is worth? At least I think it is call a
Harp?
Mrs. Marie Pauline Sauzier

<a href="http://www.badongo.com/pic/241713" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/241713">http://www.badongo.com/pic/241713</a><!-- m --></a>
<a href="http://www.badongo.com/pic/241714" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/241714">http://www.badongo.com/pic/241714</a><!-- m --></a>
<a href="http://www.badongo.com/pic/241715" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/241715">http://www.badongo.com/pic/241715</a><!-- m --></a>

[paul monfils]

All the shells in these pictures are Harp shells (genus Harpa). Two of them are very common species, the larger one probably Harpa major, the smaller one is too dark in the photo to be certain. But the one you are asking about, with the many close-set ribs, appears to be Harpa costata from Mauritius. This is quite a rare shell, and a good specimen might be worth $200 to $300.