Prionchulus kamchaticus sp. nov. and P. major Gagarin, 2001 are described and redescribed based on the material collected from Kamchatka Peninsula, Russia.
Andrássy, I. 1985. On the genera Mononchus Bastian, 1865 and Prionchulus (Cobb, 1916) Wu et Hoeppli, 1929 (Nematoda: Mononchidae). Opuscula Zoologica Universitatis Budapestinensis, 21: 9-22.
Andrássy, I. 2003. New and rare nematodes from Alaska II. Four species of the order Mononchida. Journal of Nematode Morphology and Systematics, 5: 61-72.
Ditlevsen, H. 1912. Danish freeliving nematodes. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 63: 213-256, pis. 2-5.
Gagarin, V.G. 2001. New species of free-living freshwater nematodes from Eurasia. Zoosystematica Rossica, 9: 11-17.
Loof, P. A. A. 1991. Redescription of Prionchulus spectabilis (Ditlevsen, 1911) Cobb, 1916 (Nematoda: Mononchina). Nematologica, 37: 174-184.
Tysowski, A. 1915. Wolnożyjące nicienie (nematodes) zebrane w powiecie sokalskim. Rozprawy i Wiadomości z Muzeum im. Dzieduszyckich, 1: 65-92, pl. 3.
Winiszewska, G. and A. Susulovsky. 2003. Revision of the genus Prionchulus Cobb, 1916 (Nematoda: Mononchina). I. Prionchulus muscorum (Dujardin, 1845) Cobb, 1916 and related species. Annales Zoologici, 53: 559-577.