Seguenziidae Verrill, 1884
Basilissopsis charcoti Marshall, 1991
Basilissopsis hakuhoae Kurihara & Ohta, 2008
Basilissopsis oxytropis (Watson, 1879)
Basilissopsis regina (B.A. Marshall, 1983)
Basilissopsis rhyssa (Dall, 1927)
Basilissopsis watsoni Dautzenberg & H. Fischer, 1897
