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~ a celebration of nature

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Tag Archives: Discus rotundatus

A walk of snails

09 Thursday Jan 2025

Posted by sconzani in molluscs

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Tags

Balea perversa, British snails, Brown-lipped snail, Cepaea hortensis, Cepaea nemoralis, Discus rotundatus, snails, Wall snail, White-lipped snail

On days when I don’t feel like getting my hands dirty in the leaf litter, and I’m walking in that direction, I’ve increasingly been turning my attention to one of my local parks, as I find all manner of creatures on the park’s roadside railings (as witnessed by my recent posts: Vapourer cocoon and eggs, 2 January, and Lesser thorn-tipped longhorn beetle, 4 January). Snails are also frequent finds; presumably they don’t mind the exposed conditions and the frequent rain, and I guess they find the surface of the railings easy to slide along. So far, I’ve found four species there …

250109 snail balea perversa

Wall snail (Balea perversa) (also known as Tree snail)

250109 snail white-lipped

White-lipped snail (Cepaea hortensis)

250109 snail brown-lipped

Brown-lipped snail (Cepaea nemoralis)

250109 snail Discus rotundatus

Discus rotundatus

Oh, and if you’re wondering about the title of this blog, apparently ‘walk’ is the correct, if somewhat ironic collective noun for snails.

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At a snail’s pace

26 Sunday Mar 2017

Posted by sconzani in molluscs, nature

≈ 8 Comments

Tags

Aegopinella nitidula, British snails, Clear glass snail, Discus rotundatus, Discus snail, Kentish snail, Monacha cantiana, Rounded snail, Smotth glass snail, snails, Waxy glass snail

I had no intention of sliding down the slippery slope of snail identification but I’ve found a few in recent weeks and couldn’t not try to ID them. And then a friend, who has given up on that ‘too hard’ process, gifted me his guide book. Luckily, there is also a good ‘Slugs and Snails of the British Isles’ group of very helpful folks on Facebook, though you do have to know which bits of the snail to photograph for them to be able to help. So, these little snails are hopefully correctly identified as follows:

170326 snail Aegopinella nitidula

Smooth glass snail (Aegopinella nitidula)
Also known as the Clear glass snail or Waxy glass snail, this little land mollusc can be found munching away on plant matter all year round in gardens and hedgerows, rough grassland, waste ground and woodlands throughout much of Britain. It only grows to around 10mm so is quite little.

170326 snail Discus rotundatus

Rounded snail (Discus rotundatus)
At between 5 and 7mm across, the Rounded or Discus snail (I think that second name suits it very well) is also rather small. Its shell is quite flat but tightly coiled, with up to 6 whorls, and its upper surface is densely ribbed. It’s another very common snail (I obviously haven’t been looking very hard as this was my first sighting) and is especially partial to sheltered damp spots under logs, amongst leaf litter, beneath stones and rubble. Apparently it feeds on detritus (I’m never quite sure what that means!) and fungi.

170326 snail Monacha cantiana (2)
170326 snail Monacha cantiana (1)

Kentish snail (Monacha cantiana)
It may be named the Kentish snail but this is actually an introduced species. According to the German website Animal Base, it was ‘introduced to Great Britain with farmers in late Roman times and spread mainly in the mediaeval period, occupying a compact area covering S and E England, and still continues spreading (isolated sites in Wales, W central England and Scotland)’. The slight hairiness of my little friend (see photo above right) is because it’s a juvenile – those hairs will rub off as it grows to its full size of around 16mm.

170326 snail Monacha cantiana (3)

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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