(Diastylidae) (Diastylidae) is a biological family of the class Malacostraca and order Cumacea (Cumaceans).
Anchicolurus
Brachydiastylis
Colurostylis
Diastylis
Diastylopsis
Dimorphostylis
Ektonodiastylis
Leptostylis
Makrokylindrus
Oxyurostylis
Vemakylindrus
Bodotriidae
Ceratocumatidae
Diastylidae
Gynodiastylidae
Lampropidae
Leuconidae
Nannastacidae
Pseudocumatidae