Mike Wilkes / Great grey slug (Limax maximus) and its mucus trail, UK
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Doug Wechsler / Leopard slugs (LImax maximus) pair during courtship, Pennsylvania, USA. September.
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Nick Upton / Yellow cellar slug (Limacus flavus) crawling over an old log in a garden at night, Wiltshire, UK, October.
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Nick Upton / Yellow cellar slug (Limacus flavus) against a white background, Wiltshire, UK, October.
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Nick Upton / Irish yellow slug / Green cellar slug (Limacus maculatus), top and Yellow cellar slug (Limacus flavus), bottom, against a white background, Wiltshire, UK, October.
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Nick Upton / Yellow cellar slug (Limacus flavus), top and Irish yellow slug / Green cellar slug (Limacus maculatus), bottom, crawling over an old log in a garden at night, Wiltshire, UK, October.
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Nick Upton / Tree slug (Lehmannia marginata) crawling over a house wall at night, Wiltshire, UK, October.
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Nick Upton / Netted slug / Grey field slug (Deroceras reticulatum) resting in its fully retracted state with its mantle covering the head on a log in a garden at night, Wiltshire, UK, October.
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Nick Upton / Netted slug / Grey field slug (Deroceras reticulatum) crawling over a log in a garden at night, Wiltshire, UK, October.
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Nick Upton / Netted slug / Grey field slug (Deroceras reticulatum) against a white background, Wiltshire, UK, October.
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Nigel Cattlin / Grey field or garden slug (Deroceras reticulatum) with slime trail and damage feeding on an oilseed rape (Brassica napus) leaf
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Nigel Cattlin / Grey field slug (Deroceras reticulatum) with slime trail and damage on a barley cereal leaf in autumn