Voragonema Explained

Voragonema is a genus of hydrozoans belonging to the family Rhopalonematidae. The genus comprises four species.^[1] Unlike most hydromedusae, these do not have a sessile stage. Rather, they spend their entire lives in the water column as plankton. Centripetal expansions protruding from the ring canal is a characteristic that separates this genus from other genera in the family Rhopalonematidae.

Species

• Voragonema laciniata
• Voragonema pedunculata
• Voragonema profundicola
• Voragonema tatsunoko

References

• World Register of Marine Species.

Notes and References

1. Lindsay, Dhugal & Francesc Pagès, 2010. "Voragonema tatsunoko (Trachymedusae: Rhopalonematidae) a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)." Zootaxa 2671: 31-39.