Fig. 4
From: Etmopteridae bioluminescence: dorsal pattern specificity and aposematic use

Mean inclination angle between iris perpendicular and the lens cells axis of left and right spine base associated photophores (SBAPs) and ventral photophores
From: Etmopteridae bioluminescence: dorsal pattern specificity and aposematic use

Mean inclination angle between iris perpendicular and the lens cells axis of left and right spine base associated photophores (SBAPs) and ventral photophores