Potamopyrgus antipodarum. Male from population with highest recorded % of males in Europe. Flexed penis with longitudinal band of wavy white on grey. September 2012. Llanfihangel, Wales. For further information click “View Image Details”
Photographer / copyright holder
Map name is Llanfihangel y Traethau, but road signs and study by C. Wallace refer to village as “Ynys”.