Help with snail ID

[Pat H.]

I bought this snail(actually three) as a "fighting conch". It doesn't look like any pics i've found of the Florida fighting conch, but might be from another area. One noticable feature is a sharp white tooth or spike on the front of the shell. These don't really seem to like being on the gravel, but prefer rock and glass, but when on the glass i've not been able to see them feeding. Also, these don't seem to bother with other snails or inverts...so far.
Any ideas?

 

[Pat H.]

here's one showing the white tooth.

 

[nunofs]

I don't know what snail you have, but it's completely different from any conch I've seen. The conchs' shells are more elongated and have "knobs" on the curled part, and don't have those colored bands, or the pinkish foot...

Nuno

 

[smcnally]

Looks almost like a bumble bee snail, but I don't think it is.