CosmocercidaeThe Cosmocercidae are a nematode family in the superfamily Cosmoceroidea.GeneraGenera within the family Cosmocercidae include:Cosmocercoides Wilkie, 1930Nemhelix Morand & Petter, 1986 - with the only species Nemhelix bakeri Morand & Petter, 1986Aplectana, with 42 species, type: ''Aplectana herediaensis''