close shot of small discus rotundatus shell snail

animal antenna antennae apex asellus axis background body brown bug closeup common crawling crawly creature creepy disc discus finger foot garden gastropod head hold insect invertebrate invertebrates macro mollusc motion nature oniscus pill protoconch rotund rotundatus rounded shiny slimy slow small snail species spiral suture tentacles whorl wild wildlife woodlice woodlouse