Earle gastrula.A conspicuousn blasserved on thedorsal topore groove was observed on the dorsol subequatorial region of the embry0,and there were bottle cells marking cell ingression at the blastopore groove as shown or both species(Fige.4C;8A;9A-B).Inslightly more advance embryos,the dorsol blastopore lip was detected in dorsol subequatorial region,as shown for H.Aeischmanni(Fige.2D;8B)