original description
(of Nygolaimus asymmetricus Andrássy, 1962) Andrássy, I. (1962). Neue Nematoden-Arten aus Ungarn. II. Fünf neue Arten der Überfamilie Dorylaimoidea. <em>Opuscula Zoologica Budapestinensis.</em> IV (2-4): 21-33. [details] Available for editors [request]
new combination reference
Heyns, J. (1968). A monographic study of the nematode families Nygolaimidae and Nygolaimellidae. <em>Entomology Memoirs Plant Protection Research Institute Pretoria, South Africa.</em> 19: 1-144. [details] Available for editors [request]
From editor or global species database
Environment freshwater record [details]