Superfamily Ascaridoidea

Rev. 05/28/26

• large stoma
• intestinal parasites of vertebrates 
• most are minor parasites of birds and fish 
• generally < 2 cm long, except Ascaris

Genera include:

Ascaris

Toxocara canis (dog ascarid)

Anisakis.

Families:

• Heterocheilidae
• Ascarididae
• Raphidascarididae
• Anisakidae

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