G.  Phillips, Moulton, J. K., and Bernard, E. C., ?Heth pivari n. sp. (Nematoda: Ransomnematoidea: Hethidae) from the indigenous North American millipede Narceus gordanus (Spirobolida: Spirobolidae), with keys for worldwide Heth spp.?, Zootaxa, vol. 4861, no. 4, pp. 486-514, 2020.