Diplotriaenidae

Diplotriaenidae is a family of spirurian nematodes. Like all their relatives, they have neither a circulatory a or respiratory system. They are the only family in superfamily Diplotriaenoidea, if the Oswaldofilariidae are correctly placed with the Filarioidea and not here.

Systematics
Subfamilies and genera of Diplotriaenidae are:

Subfamily Diplotriaeninae Subfamily Dicheilonematinae
 * Quadriplotriaena
 * Diplotriaena - includes Diplotriaenoides
 * Chabaudiella
 * Monopetalonema - includes Politospiculum and Ornithosetaria
 * Petrovifilaria
 * Dicheilonema - includes Contortospiculum
 * Hastospiculum  - includes Setarospiculum
 * Hamatospiculum - includes Parhamatospiculum, Tytofilaria, Oceanifilaria
 * Serratospiculum
 * Heterospiculum - includes Heterospiculoides
 * Serratospiculoides