Guerrerostrongylus is a genus of nematode worms. Species of Guerrerostrongylus infect mostly the digestive tract of sigmodontine and caviomorph rodents from South America. The genus is part of the subfamily Nippostrongylinae.
Species include:
Guerrerostrongylus uruguayensis Sutton and Durette-Desset, 1991 (type-species) Guerrerostrongylus zetta (Travassos, 1937) Guerrerostrongylus gomesae Simões, dos Santos and Maldonado, 2012 Guerrerostrongylus ulysi Digiani, Notarnicola, and Navone, 2012 Guerrerostrongylus marginalis Weirich, Catzeflis, and Jiménez, 2016
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