Opinions from F.E.W. Rowe and J. Gates 1995
- 'Caudinidae belongs to Holothuroidea'
- 'Ceto belongs to Psolidae'
- 'Chiridotidae belongs to Holothuroidea'
- 'Cucumariidae belongs to Holothuroidea'
- 'Deimatidae belongs to Holothuroidea'
- 'Gephyrothuriidae belongs to Holothuroidea'
- 'Holothuria belongs to Holothuriidae'
- 'Holothuria (Acanthotrapeza) belongs to Holothuria'
- 'Holothuria (Cystipus) belongs to Holothuria'
- 'Holothuria (Halodeima) belongs to Holothuria'
- 'Holothuria (Holothuria) belongs to Holothuria'
- 'Holothuria (Lessonothuria) belongs to Holothuria'
- 'Holothuria (Mertensiothuria) belongs to Holothuria'
- 'Holothuria (Metriatyla) belongs to Holothuria'
- 'Holothuria (Microthele) belongs to Holothuria'
- 'Holothuria (Platyperona) belongs to Holothuria'
- 'Holothuria (Selenkothuria) belongs to Holothuria'
- 'Holothuria (Semperothuria) belongs to Holothuria'
- 'Holothuria (Stauropora) belongs to Holothuria'
- 'Holothuria (Theelothuria) belongs to Holothuria'
- 'Holothuria (Thymiosycia) belongs to Holothuria'
- 'Holothuria (Vaneyothuria) belongs to Holothuria'
- 'Holothuriidae belongs to Holothuroidea'
- 'Labidodemas belongs to Holothuriidae'
- 'Laetmogonidae belongs to Holothuroidea'
- 'Molpadia belongs to Molpadiidae'
- 'Molpadiidae belongs to Holothuroidea'
- 'Phyllophoridae belongs to Holothuroidea'
- 'Psolidae belongs to Holothuroidea'
- 'Psolidum belongs to Psolidae'
- 'Psolus belongs to Psolidae'
- 'Psychropotidae belongs to Holothuroidea'
- 'Sclerodactylidae belongs to Holothuroidea'
- 'Stichopodidae belongs to Holothuroidea'
- 'Synallactidae belongs to Holothuroidea'
- 'Synaptidae belongs to Holothuroidea'