Miscellaneous Intestinal Nematodes

Trichostrongylus and hookworm eggs. Fertile eggs in fecal smear (unstained, high power). For purposes of identification, compare the Trichostrongylus and hookworm eggs positioned in the same microscopic field; note that the typical hookworm egg is smaller, bluntly rounded at the ends, and characteristically is in the four- to eight-cell stage of development in fresh feces; however, in this picture the hookworm egg is in a more advanced stage of cleavage.