1. Phylum: Nemathelminthes Class: Nematoda Ancylostoma By Assist. lecturer Maytham A. Alwan

2. Ancylostoma superfamily : Ancylostomatoidea Family : Ancylostomatidae Sub Family : Ancylostomatinae Genus : Ancylostoma Species : A. duodenale (human), A. braziliense (dog and cats), A. caninum (dog), A. tubaeforme (cats ) Synonyms : hook worm

3. Morphology Morphology : 1. Female 10-13 mm long is slightly larger than male 8-11 mm long. A. duodenale, 8 to 13 mm long, A. braziliense, from 8 to 11 mm long, dark in color, anterior end have a large buccal cavity containing one (A. braziliense ), two (A. duodenale ), three (A. caninum, A. tubaeforme ) pairs of sharp teeth and more or less hooked. 12/5/20153

4. Morphology The male’s posterior end is expanded to form a copulatory bursa. 2. Eggs: 60×40 µm in size, oval in shape, shell is thin and colorless. Content is 2-8 cells. 12/5/20154

6. 6

7. 7

8. 0.8-1 mm long 1-1.4 mm long Hook mouth Digestive system testis Cement gland Opening of cloaca Copulatory spicule ovary uterus vulva vagina Ecit opening

9. Ancylostoma The oral opening of this species contains cutting plates as opposed to teeth.

10. Ancylostoma Po The posterior end showing bursa with spicules

11. 12/5/201511

12. Ancylostoma Life Cycle Diagram

13. Ancylostoma Cutaneous larva migrans: caused by probable Ancylostoma braziliense