A scanning electron microscopic study of eggshell surface topography of Wetanema hula (Nematoda: Oxyuridomorpha: Thelastomatoidea)

Abstract

ABSTRACT The eggs of Wetanema hula, were studied with scanning electron microscopy (SEM). Numerous pores were observed across the entire eggshell surface, making a regular pattern. The shape and diameter of the pores were not uniform, and no signs of an operculum were observed. The eggs of W. hula are most similar in surface topography to those of Blatticola blattae. Uterine eggs of W. hula differ from those of W. ripariae in having a larger width and less pronounced flattening on one side.