Opistocystidae

Opistocystidae is a family of annelids belonging to the order Haplotaxida.

Genera:

• Crustipellis <small>Harman & Loden, 1978</small>
• Opistocysta <small>Černosvitov, 1936</small>
• Trieminentia <small>Harman & Loden, 1978</small>

References