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Quadrigyridae
Quadrigyridae is the only family within Gyracanthocephala, an order of parasitic worms of class Eoacanthocephala. This family contains two subfamilies, ten genera and about 92 species. Wikipedia
Class: Eoacanthocephala
Higher classification: Gyracanthocephala
Family: Quadrigyridae; Van Cleve, 1920
Scientific name: Quadrigyridae
Kingdom: Animalia