1. Tergipes tergipes. Brown digestive gland ziz-zagging left and right to connect single cerata resembles zig-zag stem of Obelia geniculata (hydroid) on which it often feeds. March 2011. LWS, Menai Strait, Wales.
2. Tergipes tergipes. Brown digestive gland ziz-zagging left and right to connect single cerata resembles zig-zag stem of Obelia geniculata (hydroid) on which it often feeds. March 2011. LWS, Menai Strait, Wales.

Tergipes tergipes. Brown digestive gland ziz-zagging left and right to connect single cerata resembles zig-zag stem of Obelia geniculata (hydroid) on which it often feeds. March 2011. LWS, Menai Strait, Wales.