Hassalstrongylus

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 Nippostrongylinae and related to genera like "Stilestrongylus".
The proposed species "Hassalstrongylus multiovatus", described from "Akodon simulator", is a synonym of "Trichofreitasia lenti" from "Oligoryzomys flavescens".