Amphicaryon intermedia   Daniel,  1970 (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Polygastric phase: Two nectophores of unequal size, shape, and both functional.

Larger nectophore: Smooth, devoid of ridges, longer than broad - 3.85 mm in length, 2.25 mm in breadth. Hydroecium shallow, large occur on ventral side. Somatocyst small, thick, curved towards dorsal side. Nectosac 2.10 mm long, 1.30 mm wide with ostium of 1.0 mm in diameter. Radial canals - 4, simple, straight, unbranched join circular canal around ostium; ostium lying below surface of nectophore with a funnel-like slope towards ostium.
Smaller nectophore: Not flat and shield-like; dome-like in shape, not embraced by larger nectophore. 3.25 mm long, 2.75 mm broad. Rounded on dorsal side, concave with a shallow, circular hydroecium in middle region on ventral side in contact with hydroecium of larger nectophore. Nectosac small but well developed, 1 mm in length, with small ostium 0.25 mm in diameter. Ostium round in shape, open, lying below outer surface of nectophore which slopes downward like a funnel as in larger nectophore. Radial canals simple straight and unbranched.

Synonym (s)
Amphicaryon intermedia Daniel, 1970
Amphicaryon intermedia Daniel, 1974

Common Name (s)
Economic Importance and Threats



• West Coast INDIA (Record: 1962-1965)
• Arabian Sea INDIA (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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-06-09

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