The family Monhysteridae has a confused taxonomic history with a large list of synonyms and . The taxonomic problem is not restricted to the old literature; inconsistencies also appeared in recent studies (Fonseca and Decraemer, 2008).
General Characteristics of the family:
(Ref. Andrassy, 2005).
Fonseca and Decraemer (2008) recognized 17 valid genera in the family Monhysteridae, seven of which are considered free-living nematodes inhabiting marine sediments. The seven genera of marine Monhysteridae include 70 valid species..
Andrassy, I. 2005. Free-living Nematodes of Hungary, Vol. I. Hungarian Natural History Museum, Budapest.
Fonseca G. and Decraemer, W. 2008. State of the art of the free-living marine Monhysteridae (Nematoda). J. Marine Biol. Assoc UK. 88:1371-1390