Willems, Wallberg, Jondelius, Littlewood, Backeljau, Schockaert, & Artois, 2006
Neotyphloplanida Willems, Wallberg, Jondelius, Littlewood, Backeljau, Schockaert & Artois, 2006
Thalassotyphloplanida Willems, Wallberg, Jondelius, Littlewood, Backeljau, Schockaert & Artois, 2006
Kytorhynchidae Rieger, 1974