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” Submitted by Ian Smith on Thu, 27/12/2012 19:55 Species Potamopyrgus antipodarum Photographer / copyright holder I.F. Smith Map name is Llanfihangel y Traethau, but road signs and study by C. Wallace refer to village as “Ynys”.