snail ID??

[joker]

This snail hitched a ride in on my LR. It appears to be feeding on my sponges.
Anyone identify??
TIA

 

[joker]

another, clearer pic

 

[joker]

last image
I seem to remember reading something not good about snails with the "horn".

 

[jonthefb]

i looks very simlar to a snail from the murridae family, known predators of corals sponges, etc...id definately remove it!
good luck
jon

 

[joker]

thanks for the info. I definitely get the feeling it is a predator