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Voragonema
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Cnidaria
Class:	Hydrozoa
Order:	Trachymedusae
Family:	Rhopalonematidae
Genus:	Voragonema Naumov, 1971
Species
Voragonema laciniata Voragonema pedunculata Voragonema profundicola Voragonema tatsunoko

Voragonema is a genus of hydrozoans belonging to the family Rhopalonematidae. The genus comprises four species. 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

1. Naumov, D.V. (1971) Hydromedusae and scyphomedusae from the Kurile-Kamchatka trench. Trudy Institute Okeanology, 92, 9–17
2. 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.

• World Register of Marine Species.

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