Chuniphyes multidentata   Lens & van Riemsdijk,  1908 (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Image copyrights: MBARI

Polygastric phase: Anterior nectophore: Upto 36 mm in length, with pointed tip and four ridges at apex; dorsal and laterals dividing dichotomously at 3-5-7.5 mm (according to age) below apex and 8 ridges reach base; dorso-laterals end in prominent teeth, two dorsals and two ventro-laterals in minor ones; all ridges faintly serrated at base. Ventral ridge divides into two at upper end of opening of conical hydroecium, which run down, forming edges of hydroecium, with prominent teeth at basal margin. Somatocyst shape varies-butterfly shaped, broad, the two wings embracing nectosac in middle region; apical branch thin; thread-like extend upto tip of nectophore; or with knob-like base. Ostium of hydroecium wide and oblique. Nectosac half the length of nectophore, with looped short lateral radial canals.

Posterior nectophore: Upto 40 mm in length, with three ridges at apex-one dorsal, two ventro-laterals each dividing dichotomously lower down, and six ridges at ostial lever ending in teeth. Two baso-ventral teeth broad, long, with left one longer than right. Hydroecium is a long, open, broad groove extending entire length of nectophore; proximally a broad flap-like structure from right hydroecial wing cover hydroecial groove; flap on left wing much reduced. Somatocyst thin thread-like extend upto tip of nectophore, and with pedicular canal leading to four radial canals.

Eudoxid phase: Bract: Upto 7.73 mm in length, thin, dorso-ventrally flattened, membranous, with lateral sides rolled when loose, right-hand side overlapping the other; phyllocyst 5.67 mm in length with broad thick three armed anterior portion and two long thin, thread-like longitudinal branches directed posteriorly, left: branch being longer than the other. Apical rounded notch present in middle of ract.

Gonophore: With pointed tip. 5 longitudinal ridges dorsal and lateral ridges complete ending in teeth at ostium, ventrals incomplete terminating near shallow gutter-like hydroecial groove and at base as two short ridges ending in two minor teeth near ostium. No gonad bearing manubrium observed within nectosac.

Synonym (s)
Chuniphyes multidentata Bigelow, 1911
Chuniphyes multidentata Daniel, 1974
Chuniphyes multidentata Lens & van Riemsdijk, 1908

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic


• Bay of Bengal (Lat: 15) (Long: 90) INDIA
• Bay of Bengal (Record: 1962-1965)

Literature Source(s)
  • Daniel, R (1985) Fauna of India and the adjacent countries (Coelenterata: Hydrozoa: Siphonophora) ZSI 440 pp Available at - NIO, Goa
  • Zoological Survey of India (Eds) (1991) Animal resources of India (Protozoa to Mammalia) ZSI 1-694 Available at - NCL, Pune
  • Daniel, R and Daniel, A (1969) Siphonophora collected during the 35th cruise of the R. V. VITYAZ in the eastern part of the Indian Ocean Symposium on Indian Ocean, Part II 571-574 Available at - Library, CAS, Parangipettai
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sealifebase Available at -
  • Monterey Bay Aquarium Research Institute Available at -

Page last updated on:2010-06-16

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