1. Polycera quadrilineata. Gill fan folded backwards. Body may conceal foot (right), or foot may spread laterally into view (left). On prey; Membranipora membranacea on Laminaria frond. Menai Strait, Wales. Feb. 2011.
  2. Polycera quadrilineata. Gill fan folded backwards. Body may conceal foot (right), or foot may spread laterally into view (left). On prey; Membranipora membranacea on Laminaria frond. Menai Strait, Wales. Feb. 2011.

Polycera quadrilineata. Gill fan folded backwards. Body may conceal foot (right), or foot may spread laterally into view (left). On prey; Membranipora membranacea on Laminaria frond. Menai Strait, Wales. Feb. 2011.