ID needed on a snail

It looks to be Engina histrio, often considered a form of Engina alveolata. I have collected both the yellow (E. histrio) "form" and the orange and black (E. alveolata) form in the same areas, and the E. alveolata are always larger, always orange, and they never intergrade.

They are technically whelks, but lots of people have kept them in their tanks without much going amiss. They will certainly eat other small animals, but don't get large enough to do much damage. Once they form the thickened lip with the denticles inside, they are adult, and won't grown any larger. They don't eat coral.

http://www.conchology.be/en/cyberco...io&species2=Engina histrio&family2=BUCCINIDAE

Cheers,



Don
 
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