During the polygastric phase of Diphyes bojani, the front nectophore has a slim pyramidal shape. The mouth-plate remains undivided, featuring a noticeable vertical crest along the dorsal side. There is a distinctive crest resembling a tooth in the middle of the dorsal surface. The bract is approximately 3.0 mm long and 1.8 mm wide, taking on a shield-like form. It is thin and leaf-like with a thickened center, and it has two teeth along the serrated edge of the bract. The phyllocyst, which is knob-like or slightly elongated at one end, is positioned in the middle of the bract.