Anyone know exactly what species this is? I gather it may be an auger (family) or cerith (family) of some sort.

This particular one is native to Indonesia's black beaches.

I would like to know what is the genus and species of this specimen.


1 Answer 1


That is a piece broken off of a sea urchin shell.

enter image description here

Without it's spines, it's not possible for me to say which species it is.

  • 1
    $\begingroup$ Good eye anongoodnurse +1 $\endgroup$
    – rhill45
    Commented Feb 18, 2015 at 23:54
  • $\begingroup$ WOW! Holy cow anongoodnurse, I am impressed. You are totally right. $\endgroup$
    – Xplodotron
    Commented Feb 19, 2015 at 15:07

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