Great pond snail  (Lymnaea stagnalis)

This species is the largest pond snail in Britain (1). It has a shiny yellowish brown shell, with a tall, slender and pointed spire (2). The shell walls are delicate and fairly transparent; they have fine markings, more prominent growth lines and variable dents on the surface (2). This snail's body is yellowish grey in colour, with a large head and long, flattened tentacles (3).