Hassalstrongylus musculi

Hassalstrongylus musculi is a nematode worm of the genus "Hassalstrongylus" that infects the marsh rice rat ("Oryzomys palustris") and house mouse ("Mus musculus") in the United States and "Oryzomys couesi", "Oligoryzomys fulvescens", and "Handleyomys melanotis" in San Luis Potosí, Mexico. It was first described as "Longistriata musculi" by Dikmans in 1935, but transferred to "Hassalstrongylus" in 1971 and 1972 by Marie-Claude Durette-Desset. She later renamed the material she had used to describe "H. musculi" in 1972 as "H. forresteri". The females cannot be distinguished from those of the other species in the marsh rice rat, "H. forresteri" and "H. lichtenfelsi".