MOESM8 of Reinvestigating the early embryogenesis in the flatworm Maritigrella crozieri highlights the unique spiral cleavage program found in polyclad flatworms

Additional file 8. A movie of an embryo forming the third quartet. Prior to the cleavage of macromeres 2A–2D, blebbing becomes visible on the cell surfaces in form of small, vesicle-like protrusions. The movie shows that mitotic cytoskeletal activity during anaphase correlates with the observed protrusions.