Julida

Aprosphylosomatidae Hoffman, 1961

Blaniulidae Koch, 1847

Chelojulidae Enghoff, 1991

Galliobatidae

Hexecontasoma Hannibal, 2000

Julidae Leach, 1814

Mongoliulidae

Nemasomatidae Bollman, 1893

Okeanobatidae Verhoeff, 1942

Paeromopodidae Cook, 1895

Parajulidae Bollman, 1893

Pseudonemasomatidae

Rhopaloiulidae

Telsonemasomatidae Enghoff, 1991

Trichoblaniulidae

Trichonemasomatidae

Zosteractiidae

Zosteractinidae Loomis, 1943