gray, black or dark brown greenhouse slug, milax gagates

animal arion background black brown carolina closeup color dark environment forest gagates garden gasteropod gastropod gastropoda grass green greenhouse habitat head hermaphrodite invasion invasive land limacidae macro milax mollusca mollusk mucilaginous natural nature north one organism outdoor pest plant problem pulmonate slimming slimy slippery slow slug sticky stylommatophora vulgaris wet wild wildlife