Peter Pearson's picture

Snail shell

Observed: 29th March 2007 By: Peter PearsonPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in InvertebratesPeter Pearson’s reputation in Invertebrates
Snail shell 1
Snail shell 1 1
Snail shell 1 1 2
Description:

These photographs were taken whilst searching for Otter traces on a survey on the tidal section of the River Stour under White Bridge, Cattawade, Lawford, Essex. There were a number of shells and traces of the past presence of otters. However I did not think otter was the animal eating the snails as presumably they would have eaten shell and all. I have been trying to find what animal is responsible since 2007 so far unsuccessfully any help would be welcome

Identifications
Species interactions

No interactions present.

Comments

jonmortin's picture

I think Bank Voles eat snails

I think Bank Voles eat snails in this way. You often find little piles of broken shells in woods and similar places. The absence of an anvil would rule out Song Thrush.

markgtelfer's picture

Beetles?

Smaller helicid snails are predated in a similar way by a few species of carabid beetles in the genus Badister. They break the shell open starting at the mouth and working backwards around the whorls. They make a neater job of it though and I'm sure they wouldn't tackle anything as big as Cornu. So your snails might have been predated by a big carabid such as a Carabus but more likely I'd guess a rodent.