The Family Synaphobranchidae contains these Genera:

• Atractodenchelys
• Dysomma = Dysommopsis = Nettodarus
• Dysommina
• Haptenchelys
• Ilyophis
• Linkenchelys
• Meadia
• Thermobiotes
• Simenchelys
• Synaphobranchus > Diastobranchus Histiobranchus