Phylum:
Nemathelminthes
Class: Nematoda
Ancylostoma
By
Assist. lecturer Maytham A. Alwan
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
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.
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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.
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0.8-1 mm long
1-1.4 mm long
Hook mouth
Digestive system
testis
Ecit opening
ovary
uterus
Copulatory
spicule
Cement gland
Opening of cloaca
vulva
vagina
Ancylostoma
The oral opening of this species contains
cutting plates as opposed to teeth .
Ancylostoma
• Po
The posterior end showing bursa with spicules
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Ancylostoma
Life Cycle Diagram
Ancylostoma
Cutaneous larva migrans: caused by
probable Ancylostoma braziliense