Dear conch-lers,
I collected this specimens of the  Calyptraeidae family in Tumbes, in
the north of Peru.
the second specimen is a Crucibulum  spinosum, but the first specimen
have thick spines, I have never seen other like this.
Is this a Crucibulum spinosum?

http://pututu.org/identify/spinosum1_55mm.jpg
http://pututu.org/identify/spinosum2_52mm.jpg

Best regards,

Eduardo

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