Joe30's picture

Are these Dun Sentinel Snails?

Observed: 24th March 2012 By: Joe30Joe30’s reputation in InvertebratesJoe30’s reputation in Invertebrates
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Description:

Small snails, 3-5mm in length found just past the high tide mark of the Humber estuary, in between areas of reed, sea aster and damp grass. Hope someone can help as I can't find much info on these. Thanks.

Identifications
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Comments

martinjohnbishop's picture

You could start from here

Joe30's picture

Thanks.....

I have had a look on the link and the ones on there seem different colour to the ones I've seen - are they that variable?

Are they quite common or just under-recorded or something as there isn't that much on the net regarding this species in England.

Thanks.

martinjohnbishop's picture

I think yours are just muddy

The standard work might be http://www.raysociety.org.uk/publications/zoology/british-prosobranch-mo...

According to Fretter and Graham it has a limited distribution see p. 583.

Request for photo
http://www.conchsoc.org/spaccount/assiminea-grayana

A full literature search is needed, but possibly this species has not been studied much as far as its behavior and ecology are concerned.