FIGURE 1 in A new species of Polyipnus (Stomiiformes: Sternoptychidae) from the Western South Pacific

FIGURE 1. Photophores and other external features of Polyipnus species (Harold 1994). AFPS, anal-fin pterygiophore spine; D, external, spinous dorsal process (modified dorsal-fin pterygiophore); LP, lateral pigment bar; 1, predorsal pigment notch; 2, postdorsal pigment notch. Reproduced with permission from Harold (1994), fig. 1.