Syntheciidae

{{Short description|Family of hydrozoans}}

{{Automatic taxobox

|image =

|image_caption =

|taxon = Syntheciidae

|authority =

}}

Syntheciidae is a family of cnidarians belonging to the order Leptothecata.{{cite web |title=Syntheciidae |url=https://www.gbif.org/species/3361 |website=www.gbif.org |access-date=13 June 2021 |language=en}}

Genera:

• Hincksella Billiard, 1918
• Parathuiaria Leloup, 1974
• Synthecium Allman, 1872