Most observed native Spirurina
Native to the US, by how plants support them, most observed first.
Other species All
7 native species with no plant ties on record, most observed first.
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Dog Roundworm
Toxocara canis
86 observations
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Feline Roundworm
Toxocara cati
66 observations
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Human Pinworm
Enterobius vermicularis
55 observations
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Herring Worm
Anisakis simplex
37 observations
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Dog Heartworm
Dirofilaria immitis
31 observations
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Raccoon Roundworm
Baylisascaris procyonis
9 observations
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Philometra intraoculus
4 observations