[Scanning electron microscopy of adult Trichuris trichiura]

The paper reports the result of the observation on the ultrastructure of the body surface of adult T. trichiura by scanning electron microscopy. Unique features of T. trichiura are described including the presence of labial-shape structures at the periphery of mouth, eight cephalic pores and a pair of amphids around the mouth pore and vesicle-shaped cuticular protuberances on the abdomen of T. trichiura. Cuticular pores were found scattering on the surface of T. trichiura. Detailed descriptions of male copulatory sheath and spicule were presented.