Photo 1: Checkered Hairy Snail at the end of a Red Calcerous Tubeworm.
Checkered Hairy Snail: Trichotropis cancellata
This snail steals food from tube dwelling worms. It sits next to the worms and lowers pseudoprobiscis into the tube to steal the worms food. It is also capable of suspension feeding. In this photo the snail was caught in the act, though the snail is also capable of suspension feeding.
Refereneces: Dr. Erika Iyengar.