Carthusian Snail

Monacha cartusiana

''Monacha cartusiana'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies. This is the type species of the genus ''Monacha''.
Carthusian Snail (Monacha cartusia) I am particularly happy and excited to be able to finally write this post! In the UK M. cartusia is considered 'nationally rare'. As soon as I saw it in my pond one balmy day in June 2021, it struck me as very similar, but somehow different from the Kentish snails (M. cantiana) I already knew populated the garden. It transpires the two species are very difficult to separate, because of the similarity between adult M. cartusia and juvenile M. cantiana. However, after consultations between those far more qualified than I, this is now considered likely to be M cartusia and the identification has been accepted. To see how rare M. cartusia has become in the UK and to read more about the species, see the information which accompanies this video: https://www.youtube.com/watch?v=kc1ckr-xP1Q Geotagged,Monacha cartusia,Monacha cartusiana,Summer,United Kingdom

Distribution

The native distribution of this species is Atlantic-Mediterranean. It lives in various areas including:
⤷  Great Britain. This species was fully protected in the United Kingdom under the Wildlife and Countryside Act 1981 from 1981 to 1988.
⤷  Ukraine

This species has been accidentally introduced and naturalized in:
⤷  United States - Newcastle County, Delaware

Behavior

The size of the egg is 1.8 mm.

References:

Some text fragments are auto parsed from Wikipedia.

Status: Least concern
EX EW CR EN VU NT LC
Taxonomy
KingdomAnimalia
DivisionMollusca
ClassGastropoda
OrderStylommatophora
FamilyHygromiidae
GenusMonacha
SpeciesM. cartusiana
Photographed in
United Kingdom