Last night I picked up this cerith snail from my LFS. Today I noticed odd swirl marks on his shell, one of which has something that can move in and out of the swirl. Looks like some type of filter feeder. Looking a the hitchhiker guide, I was thinking it's a Spirorbid Worm.
Should I pull the snail and try to scrape it off?
Should I pull the snail and try to scrape it off?