helix aspersa maxima (brown garden snail) - producing a defensive froth of mucus - 菜園蝸牛 個照片及圖片檔蝸牛, 黏液
helix aspersa maxima (brown garden snail) - producing a defensive froth of mucus - 菜園蝸牛 個照片及圖片檔蝸牛, 黏液