Fig. 5 in Echinoderes blazeji Grzelak & Sørensen 2022, sp. nov.

Fig. 5. Cell cleavages of embryonic development of Sepia pharaonis. The numerals beside the furrows indicate the successive order of cleavage, except those after the fifth step for simplicity. All of the images were taken from live embryos under the microscope, except that the inset of (J) (A- J) Morphological characteristics of embryos for stages 1-11 are illustrated in table 1. Asterisk in (E) and (G) represents the two independent blastomeres and a clear and empty zone, respectively. Inset in (J) is a direct view of a sunflower-shaped blastodisc with the homogenous blastomeres at central circle and the radial blastcones at margin at the animal pole of the embryo. st: stage. Scale bar = 300 nm.