part of mitotic domain mitotic domain 8 fly_anatomy.ontology FBbt:00000067 See figure 1 of Foe (1989) for an atlas of mitotic domains. Unpaired mitotic domain of the embryo located immediately ahead of the 'T' at the anterior end of the ventral furrow, straddling the ventral midline. Along with mitotic domain 9, this domain is distinguished by most of its cells dividing along axes perpendicular to the embryonic surface. mitotic domain delta14-8 stage 8 embryo