Hi Sam
I think you are talking about the Powelliphanta snail which is found in the Abel Tasman – mainly in the upper areas of the park. It is a carnivorous native snail and does indeed eat worms. Check out this great You Tube video from DOC which shows you just how quickly it can suck up a worm.
https://www.youtube.com/watch?v=MWJaQ6Gw-w4
Ruth
Project Janszoon Scientific advisor
