| OCR Text |
Show 163 posterior pole the involves tion nucleocytes cells The the appear, small cells each the neural These embryoo older of the states body spiracles The and are have of the with timeo some The pass into the After the that the just form coelomic masses body but the spherules Later and These cells and yolk, later completely from migrate posterior end homogeneous cytoplasm around a lobes the oenocytoids originate the to of the and edges; in with hematoxylino anterior in these cavities in the cell masso up oenocytes originate and cell lobulated with breaks dark brown dorsal inner germ bando chromatin concemtrated a the transparent cytoplasm, toward the clear micro the history inner becomes for development present similar a cell cells have wall later then the embryos they stain Bijanni of cell particularly with large nuclei layer mesodermo hatchingo crests, body cavity, upper cells the first persist independently the that and in the lobe, before found portion round the He migrate throughout they disintegrate; disappear from the lower found deep the spherule in Superficial segmenta Jackson followed particularo macronucleocytes Spherule cells, first embryoo yolk mass, from the originate are in formed are emter cavityo the dissertation, blood layer, of Katatrepsis apparently egg. during blastokinesiso occurs the the shortening a Ia his of of to from the the iaside abdominal regionso develop as clefts in the somites. |
