blue slug on the forest ground top view of invertebrate organism forest floor scene

animal autumn beskydy bielzia blue coerulans czech dirt earth endemic environment floor forest gastropoda ground hermaphrodit heterobranchia invertebrate limacidae mollusca mollusk moravskoslezske mucous mud natural nature oozy organism orthogastropoda people pest pulmonata rare scene slime slither slow slug snail soil tentacles terrestrial thin top uncommon univalve view wild