What snail is this? pyramid?

[troopa]

Pulled this (1 of many) out my tank to tank some pics.

Anyone know what it may be...

IMG_5954 by troopa9, on Flickr


IMG_5956 by troopa9, on Flickr


IMG_5962 by troopa9, on Flickr


IMG_5967 by troopa9, on Flickr


IMG_5969 by troopa9, on Flickr

please help.

 

[downbeach]

I'd say it's a Rissoid(good), not a Piramid(bad).

 

[troopa]

Yay! thats a very informative picture. thank you