Cerithium echinatum

[ScubaSteve]

I'd try them. If they bury themselves, their probably detrivores. I've never had the C. enchinatums before, so I don't know how different they are from the smooth shelled cerith.

[Enigma]

Yes, C. enchinatums bury themselves (or rather, as I've yet to see them, what the store was sent as C. enchinatums bury themselves). The manager had to dig them out of the sand to visually confirm that they had been received.