Apixystus Iredale, 1929 accepted as
Gemixystus Iredale, 1929 (additional source)
Apixystus leptos Houart, 1995 accepted as
Gemixystus leptos (Houart, 1995) (original description)
Conchatalos Houart, 1995 (original description)
Conchatalos canalibrevis Houart, 1995 (original description)
Conchatalos lacrima (Houart, 1991) (new combination reference)
Conchatalos tirardi (Houart, 1991) (new combination reference)
Conchatalos vaubani Houart, 1995 (original description)
Leptotrophon Houart, 1995 (original description)
Leptotrophon acerapex (Houart, 1986) (new combination reference)
Leptotrophon bernadettae Houart, 1995 (original description)
Leptotrophon biocalae Houart, 1995 (original description)
Leptotrophon caledonicus Houart, 1995 (original description)
Leptotrophon caroae Houart, 1995 (original description)
Leptotrophon charcoti Houart, 1995 (original description)
Leptotrophon coralensis Houart, 1995 (original description)
Leptotrophon coriolis Houart, 1995 (original description)
Leptotrophon inaequalis Houart, 1995 (original description)
Leptotrophon levii Houart, 1995 (original description)
Leptotrophon lineorugosus Houart, 1995 (original description)
Leptotrophon marshalli Houart, 1995 (original description)
Leptotrophon metivieri Houart, 1995 (original description)
Leptotrophon minispinosus Houart, 1995 (original description)
Leptotrophon musorstomae Houart, 1995 (original description)
Leptotrophon protocarinatus Houart, 1995 (original description)
Leptotrophon richeri Houart, 1995 (original description)
Leptotrophon rigidus Houart, 1995 (original description)
Leptotrophon spinacutus (Houart, 1986) (new combination reference)
Leptotrophon surprisensis Houart, 1995 (original description)
Leptotrophon turritellatus Houart, 1995 (original description)
Leptotrophon virginiae Houart, 1995 (original description)
Litozamia Iredale, 1929 (additional source)
Litozamia tropis Houart, 1995 (original description)
Trophonopsis minirotunda (Houart, 1986) accepted as
Leptotrophon minirotundus (Houart, 1986) (new combination reference)
Trophonopsis multigradus (Houart, 1990) accepted as
Enixotrophon multigradus (Houart, 1990) (basis of record)
Trophonopsis obtuselirata (Schepman, 1911) accepted as
Enixotrophon obtuseliratus (Schepman, 1911) (basis of record)