Opinions from M. Kutscher and J.W.M. Jagt 2000
- 'Amphiura plana belongs to Amphiura'
- 'Amphiura senonensis is recombined as Ophiocoma senonensis'
- 'Asteronyx ornatus is recombined as Trichaster ornatus'
- 'Asteronyx simplex belongs to Asteronyx'
- 'Asteronyx spinulosa belongs to Asteronyx'
- 'Hemieuryale parva belongs to Hemieuryale'
- 'Mesophiomusium moenense belongs to Mesophiomusium'
- 'Ophiacantha danica belongs to Ophiacantha'
- 'Ophiacantha punctata belongs to Ophiacantha'
- 'Ophiacantha rugosa belongs to Ophiacantha'
- 'Ophiacantha striata belongs to Ophiacantha'
- 'Ophiactis sulcata belongs to Ophiactis'
- 'Ophiocoma ishidai belongs to Ophiocoma'
- 'Ophiocoma rasmusseni belongs to Ophiocoma'
- 'Ophioderma arkonensis is a subjective synonym of Ophiotitanos serrata'
- 'Ophioderma radiatum belongs to Ophioderma'
- 'Ophioglypha gracilis is a subjective synonym of Ophiura serrata'
- 'Ophiolepis granulata belongs to Ophiolepis'
- 'Ophiolepis linea belongs to Ophiolepis'
- 'Ophiomusium biconcavum belongs to Ophiomusium'
- 'Ophiomusium danicum is a subjective synonym of Ophiomusium granulosum'
- 'Ophiomusium sentum belongs to Ophiomusium'
- 'Ophiomusium sinuatum belongs to Ophiomusium'
- 'Ophiomyxa curvata belongs to Ophiomyxa'
- 'Ophiomyxa rhipidata belongs to Ophiomyxa'
- 'Ophioscolex clivulus belongs to Ophioscolex'
- 'Ophioscolex cretaceus belongs to Ophioscolex'
- 'Ophiosmilax alternatus belongs to Ophiosmilax'
- 'Ophiothela belongs to Ophiothricidae'
- 'Ophiothela semirotunda belongs to Ophiothela'
- 'Ophiothrix bongaertsi belongs to Ophiothrix'
- 'Ophiothrix cristata belongs to Ophiothrix'
- 'Ophiura (Aspidura) granulosa is replaced by Stegophiura hagenowi'
- 'Ophiura (Aspidura) subcylindrica is a subjective synonym of Ophiomusium granulosum'
- 'Ophiura granulosa is recombined as Ophiomusium granulosum'
- 'Ophiura hagenowi is recombined as Stegophiura hagenowi'
- 'Ophiura parvisentum is a subjective synonym of Ophiotitanos serrata'
- 'Plathyarthra is a nomen dubium'
- 'Plathyarthra jekerica is recombined as Ophiomyxa jekerica'
- 'Schizospondylus jasmundiana is replaced by Ophiomyxa curvata'
- 'Sinosura jasmundensis belongs to Sinosura'
- 'Transspondylus bubnoffi is a subjective synonym of Ophiosmilax alternatus'