Shell-less snail

[torontofc]

I pulled out a rock today and a weird shell-less invert came out, I ran to get my camera, by the time im back, it's already gone. Anyone know what is it? Is it harmful to my fish and corals?

- about 1-2 inch
- white (looks like a snail, put without shell)
- sucks on to wall
- moves like a snail

 

[joy13]

Stomatella?
Indo Pacific Snails this is a good link to snails

 

[dadime69]

Stomatella?
Indo Pacific Snails this is a good link to snails

Slug maybe I used to have this strange black invert that would rome at night was pretty big never found out what it was have not seen it n a gang

 

[torontofc]

i don't think it's a slug, i think it's a berthella stellata (according to joy13's link (bottom)). I don't care what is it, as long as it doesn't harm my corals and fishes. Does anyone know if the berthella stellata would kill my corals and fishes? Thks.