Opinions from E. O. Ulrich and R. S. Bassler 1904
- 'Adeonellopsis belongs to Microporellidae'
- 'Amphiblestrum belongs to Membraniporidae'
- 'Amphiblestrum agellus belongs to Amphiblestrum'
- 'Amphiblestrum constrictum belongs to Amphiblestrum'
- 'Bryozoa was reranked as a class and belongs to Molluscoidea'
- 'Cellepora belongs to Celleporidae'
- 'Cellepora cribrosa belongs to Cellepora'
- 'Cellepora informata is recombined as Schizoporella informata'
- 'Cellepora umbilicata is recombined as Adeonellopsis umbilicata'
- 'Celleporidae belongs to Chilostomata'
- 'Cheilostomata [misspelled as Chilostomata] belongs to Bryozoa'
- 'Crisina belongs to Idmoneidae'
- 'Cupularia belongs to Microporidae'
- 'Cyclostomata belongs to Bryozoa'
- 'Fascigeridae belongs to Cyclostomata'
- 'Idmonea belongs to Idmoneidae'
- 'Idmonea expansa belongs to Idmonea'
- 'Idmoneidae belongs to Cyclostomata'
- 'Lepralia belongs to Lepraliidae'
- 'Lepralia maculata belongs to Lepralia'
- 'Lepralia marylandica belongs to Lepralia'
- 'Lepralia montifera belongs to Lepralia'
- 'Lepralia reversa belongs to Lepralia'
- 'Lepraliidae belongs to Chilostomata'
- 'Lunulites denticulata is recombined as Cupularia denticulata'
- 'Membranipora belongs to Membraniporidae'
- 'Membranipora bifoliata belongs to Membranipora'
- 'Membranipora caminosa belongs to Membranipora'
- 'Membranipora fistula belongs to Membranipora'
- 'Membranipora fossulifera belongs to Membranipora'
- 'Membranipora germana belongs to Membranipora'
- 'Membranipora nitidula belongs to Membranipora'
- 'Membranipora oblongula belongs to Membranipora'
- 'Membranipora parvula belongs to Membranipora'
- 'Membraniporidae belongs to Cheilostomata'
- 'Microporella belongs to Microporellidae'
- 'Microporella bifoliata belongs to Microporella'
- 'Microporella inflata belongs to Microporella'
- 'Microporella praeciliata belongs to Microporella'
- 'Microporellidae belongs to Chilostomata'
- 'Microporidae belongs to Chilostomata'
- 'Palmicellaria belongs to Lepraliidae'
- 'Retepora belongs to Schizoporellidae'
- 'Schizoporella belongs to Schizoporellidae'
- 'Schizoporella cumulata belongs to Schizoporella'
- 'Schizoporella latisinuata belongs to Schizoporella'
- 'Schizoporella subquadrata belongs to Schizoporella'
- 'Schizoporellidae belongs to Chilostomata'
- 'Theonoa belongs to Fascigeridae'
- 'Theonoa glomerata belongs to Theonoa'