See text Hassalstrongylus is a genus of nematode worms that infect mostly muroid rodents from eastern North America to South America.

The genus is part of the Heligmonellidae and related to genera like Stilestrongylus.

[2] The proposed species Hassalstrongylus multiovatus, described from Akodon simulator, is a synonym of Trichofreitasia lenti from Oligoryzomys flavescens.

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