Membrane-like structures are present between misplaced germ nuclei in fli-1(ky535). Shown are transmission electron microscope cross-sections in the meiotic pachytene zone of fli-1(ky535) mutants. (A) fli-1(ky535) displays misplaced nuclei and associated germ line plasma membrane. (B and C) Higher-magnification views of regions between the germ line plasma membrane (arrowheads) surrounding misplaced nuclei. Arrows indicate membrane-like structures in the interstices between germ line plasma membrane. An electron-dense laminar structure is shown in (C).