Hookworm (Ancylostoma duodenale) Copulatory BursaHookworms are voracious, blood-sucking parasites from the Phylum Nematoda (roundworms), which can usually found in the intestines of their hosts. The name is derived from the hook-like appendages of the mouth (buccal cavity), which are armed with cutting plates or large teeth for piercing the intestinal wall. There are two principal species of hookworms that infect humans: Necator americanus and ncylostoma duodenale. |