Pyramidellid snails??

[rudyretama]

i have a 2 in. derasa clam on the substrate, and after just looking at the tank with a flashlight i saw afew very tiny snails on the shell (not the mantel) of my clam.. could these be pyramidellid snails?

 

[bobbychullo]

please post pictures for an answer. if you can find a photo on the internet of what you have that can help too.