Fig. 11
From: The spatial pattern of bioluminescent flashes in the polychaete Eusyllis blomstrandi (Annelida)
a Under the squeezing pressure of a scalpel blade (double arrow light reflections on the blade) and 525 ms prior to autotomy a Eusyllis blomstrandi luminesces simultaneously in all of its trunk segments. b Luminescent behaviour of the anterior and posterior fragments of E. blomstrandi, same animal as in Fig. 11a, 1,158 ms later and 633 ms after fragmentation. The light emission has almost completely vanished in the anterior fragment (top right) while in the posterior fragment luminescence continues for 8.37 s after fragmentation, the initial 2.54 s of this period luminescing incessantly at full brightness