The results showed:At gastrula stage, the cells in front of the embryonic area graduslly cleave to form optic disc rudiment.

• 前蚤状幼体晚期，复眼色素区扩大到复眼直径的一半。复眼由个眼构成，每个个眼由角膜、角膜生成细胞、晶锥、小网膜细胞等组成。