Figure 6. This figure demonstrates an Aiptasia diaphana specimen feeding upon a fish that was caught using cnidocytes. In panel ‘a’ the fish's head (H) is facing the anemone's pedal disc and its tail (T) is located between the anemone pharynx and the body wall. In panel ‘b’, acontial filaments have been labelled with arrows, wrapping around the ingested prey. In panel ‘c’ there is nematocyst–prey interaction in the coelenteron. Acontial p-mastigophore capsules (CA) are aligned with the fish’s scale (SC). The discharged tubules (TU) are embedded within prey muscle tissue (MU), demonstrating how cnidocyte action contributes to heterotrophic modes of feeding. The black arrows further depict points of tubule penetration into the prey, allowing for it to be pushed to the mouth. In panel ‘d’, SDS-PAGE analysis of acontial nematocyst protein has been done, this demonstrates the various venom soluble protein components. This illustrates the complexity of Aiptasia venoms used in both feeding and defence, see ‘Cnidocyte system’ for more. This figure was sourced from Schlesinger et al (2009).