Geryonia proboscidalis   (Huxley,  1859) (Hydrozoan)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Cnidaria
Class: Hydrozoa
Order:Trachymedusae
Family:Geryoniidae

Description
Max. size: 8.0 cm WD.

Umbrella almost hemispherical; stomach small, with long conical gastric peduncle; mouth with six simple lips; six radial canals, three to seven centripetal canals between every two radial canals; gonads heart-shaped (in the young, club-shaped) on radial canals; six long, hollow perradial tentacles with nematocyst rings, and six small, solid interradial tentacles with adaxial nematocyst clusters; 12 enclosed marginal sensory clubs.


Synonym (s)
Geryonia proboscidalis (Forsskal, 1775)
(Senior synonym)
Geryonia hexaphylla Peron & Lesueur, 1809
(Junior synonym)
Medusa proboscidalis Forsskal, 1775
(Senior synonym)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Pelagic

Biogeography


• Bay of Bengal (Lat: 15) (Long: 90) INDIA
• Kerala, Off Kochi, Fairway Buoy (Lat: 9.95) (Long: 76.16) INDIA (Record: 08/1968)
• Lakshadweep Islands (Lat: 7) (Long: 69) INDIA (Record: 1985-1987) (Depth: 150 mts)
• Lakshadweep Islands (Lat: 18) (Long: 74) INDIA (Record: 1985-1987) (Depth: 150 mts)
• Exclusive Economic Zone INDIA (Record: 1986-1990) (Depth: 150 mts)

Literature Source(s)
  • Santhakumari, V (1993) A study of Medusae from Andaman and Nicobar waters The Journal of the Zoological Society of Kerala 3(1) 37-43 Available at - NCL, Pune
  • Panikkar, NK (1973) Hand book to the international zooplankton collections Volume. 5 Indian Ocean Biological Center 5 1-210 Available at - NIO, RC Kochi
  • Santhakumari, V and Nair, VR (1999) Distribution of hydromedusae from the exclusive economic zone of the west and east coasts of India Indian Journal of Marine Sciences CSIR, New Delhi 28 150-157 Available at - NIO, RC Kochi
  • Zhong, Z (1989) Marine planktology Springer-Verlag Berlin Heidelberg New York Tokyo 454 pp Available at - NIO, Goa
  • Vannucci, M; Santhakumari, V and dos Santos, EP (1970) The ecology of hydromedusae from the Cochin area Marine Biology Springer Berlin 7(1) 49-58 Available at - http://www.springerlink.com/content/p0216458384h1867/fulltext.pdf
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Sealifebase Available at - http://www.sealifebase.org/
  • Santhakumari, V (1996) Medusae from the sea around Laccadive group of islands (7 degrees-18 degrees N/69 degrees-76 degrees E) Proceedings of the Second Workshop on Scientific Results of FORV Sagar Sampada Department of Ocean Development, New Delhi, India 249-255 Available at - NIO, Goa
  • Santhakumari, V (1997) Species composition, distribution and abundance of hydromedusae in the Exclusive Economic Zone of the east coast of India Publications of the Seto Marine Biological Laboratory Sirahama 38(1-2) 53-61 Available at - NIO, Goa

Page last updated on:2012-02-03

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