Sphaeronectes gracilis   (Claus,  1873) (Hydrozoan)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Cnidaria
Class: Hydrozoa
Order:Siphonophorae
Family:Sphaeronectidae

Description
Polygastric phase: Consisting of single nectophore, 8 mm in diameter, smooth, rounded in shape. Somatocyst usually curved towards dorsal side of hydroecium, or twisted or straight. Hydroecium deep, cylindrical, with round ostium, apex being higher than level of nectosac. Nectosac small, broad with large ostium, with well developed velum. Lateral radial canals simple, straight, not conspicuously arched or bowed.

Eudoxid phase: Bract: Small, globular, with ovoid somatocyst. Hydroecium not deep.

Gonophore: One and half times larger than bract, with broad ostium; well developed velum. Four radial canals, simple, straight.


Synonym (s)
Monophyes gracilis Claus, 1873
Sphaeronectes truncata Bigelow, 1911
Sphaeronectes gracilis Daniel, 1974
Sphaeronectes kollikeri Huxley, 1859

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Pelagic

Biogeography


• Bay of Bengal INDIA (Record: 1962-1965)
• Gujarat, Off Kathiawar INDIA (Record: 1962-1965)
• Orissa INDIA

Literature Source(s)
  • Daniel, R (1985) Fauna of India and the adjacent countries (Coelenterata: Hydrozoa: Siphonophora) ZSI 440 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2010-06-23

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