Ancylostoma		Contents		Rev 10/21/2025
Hookworm		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Ancylostoma menu				Ecosystem Functions and Services
		Distribution		Management
Return to Ancylostomatidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification

Phylum:  Nematoda
Class:    Chromadorea
Order:    Rhabditida 

Superfamily:  Ancylostomatoidea

Family:  Ancylostomatidae

Ancylostoma Dubini, 1843

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Morphology and Anatomy:

Species of Ancylostoma have buccal cavities with sharp teeth. The ventral margin of the stoma armed by one (Ancylostoma braziliense), two (Ancylostoma duodenale), or three (Ancylostoma caninum and Ancylostoma tubaeforme) pairs of sharp teeth (Marchiondo et al., 2020).

Ancylostoma brasiliense: Female on left, male on right.

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Distribution:

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Economic Importance:

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Hosts:

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Feeding:

Food Sources and Feeding strategies for the genus Ancylostoma

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Life Cycle:

Ancylostoma brasiliense: Filariform larvae (infective stage) of hookworm.

Larva enters the host either by being swallowed or by burrowing into the skin through hair follicles. 

When it reaches the small intestine of the host, the larva molts a fourth and final time and develops to maturity.

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Damage:

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Management:

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References:

  Marchiondo, A.A. Cruthers, L.R., Reinemeyer, C. 2020. Nematoda, Trichostrongyloidea. Chapter 2 in Marchiondo, Cruthers and Fourie (eds) Parasiticide Screening Vol 2. Academic Press

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