Hi Olivier,
The second shell looks to me possibly like a juvenile Rissoa ventricosa Desmarest, 1814. According to Gofas, et al, they reach 8mm.
David Kirsh
Durham, NC
If money is speech, speech isn't free speech.
-----Original Message-----
>From: Olivier CARO <[log in to unmask]>
>Sent: Nov 1, 2014 11:50 AM
>To: [log in to unmask]
>Subject: [CONCH-L] Any idea of waht this could be?
>
>http://www.idscaro.net/sci/03_myst/
>The second picture shows a Rissoa...
>
>Olivier Caro
>
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