Please help me identify some cowries I found in Mozambique?

[paul monfils]

Hello,

#1 is Ovula ovum, not a true cowrie but a member of the family Ovulidae.
#2 not sure - straight-on dorsal and ventral pictures may help.
#3 is Cypraea annulus.
#4 includes 4 different species.  The first shell is Cypraea vitellus.  The second and fourth shells are Cypraea lynx.  The third shell could not be identified dorsally because it is either immature, or the mature pattern has been eroded away.  But the ventral view looks like Cypraea caurica.  The last little shell doesn't show enough detail for a positive ID.  It may be Cypraea hirundo or Cypraea kieneri, but can't be sure from this image.
#5 The shell shown in both pictures appears to be Cypraea helvola.  The shell that appears with it in the first picture appears to be Cypraea erosa.

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