« Pleurobranchus membranaceus

Pleurobranchus membranaceus Strangford Lough, Co. Down, Northern Ireland. -20m, 26 May 2006. – Photograph ©Bernard Picton

Pleurobranchus membranaceus Strangford Lough, Co. Down, Northern Ireland. -20m, 26 May 2006. - Photograph ©Bernard Picton

Pleurobranchus membranaceus Strangford Lough, Co. Down, Northern Ireland. -20m, 26 May 2006.

Pleurobranchus membranaceus Strangford Lough, Co. Down, Northern Ireland. -20m, 26 May 2006. – Photograph ©Bernard Picton