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Ancylostoma duodenale

Old World Hookworm

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General Information

COMMON NAMES: Old World Hookworm, Miner's Worm

GLOBAL DISTRIBUTION: NATIVE tropical; Europe, North Africa, Asia

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Land

SIGNIFICANCE LIST: ; Disease causing - moderate

KEY FEATURES: Cylindrical threadlike worms to 10-15mmTL and 0.5mmØ. Sexes separate, male smaller with bulbous hindend. White, grey or reddish (from ingested blood). Mouth with 4 sharp teeth. Live in large intestine, each female can lay 30,000 eggs a day, which pass with faeces, hatch in soil and re-infect through skin or mouth. Adult life span 4-7 years.

Enlarged Image of 'Ancylostoma duodenale'

Cook Islands Distribution

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Southern Group: Present Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN

Northern Group: Present
TN	MH	RK	PK	NS	SW
+			P

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Pests & Hosts

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Relationship	Hosts
Parasite - internal	Homo sapiens,

Scientific Taxonomy

Ancylostoma duodenale Dubini, 1843
TAXONOMY: ANIMALIA; NEMATODA; SECERNENTEA (=Phasmidia); Strongylida; Ancylostomatoidea; ANCYLOSTOMATIDAE

Vouchers & References

Vouchers:
Pukapuka: reported by Dr Steve Kennier, 1980s, as uncommon.

References:
None recorded.

Data Update History (information):
zB02, zD05a

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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