2 unidentified tropical shells

[conchylinet]

Hello,
I cannot identify the species below. They are from Mauritius (Western tropical Indian Ocean)

<img src="http://www.conchylinet.com/Images/Misc/60399.JPG" alt="http://www.conchylinet.com/Images/Misc/60399.JPG" style="border:0" />
40 mm (Terebridae)

<img src="http://www.conchylinet.com/Images/Misc/60387.JPG" alt="http://www.conchylinet.com/Images/Misc/60387.JPG" style="border:0" />
15mm (Donax sp.?)

Thank you.
Pierre.

[dave r]

Terebra, possibly T. argus? The donax is D. faba.
Dave

[conchylinet]

Thanks Dave.