Maresearsia praeclara   Totton,  1954 (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Polygastric phase: Consisting of two large, smooth, rounded functional nectophores devoid of any ridges, and unequal in size.

Larger nectophore: Almost globular in shape, 12.2 mm in diameter hydroecium deeply conical with broad opening. Somatocyst oval in shape, borne on a thin, short stalk. Proximal half of lateral radial canal hypertrophied with blind branches. Ostium of nectosac very small.

Smaller nectophore: 5 mm in breadth, smooth, rounded in shape, proximal half fits into hydroecium of larger nectophore. Proximal half of lateral radial canals with short blind diverticula. Stem with many gastrozooids occur within hydroecium.

Gastrozooid 4.6 mm long.

Eudoxid phase: Bracts large, rounded phyllocyst with two longer curved branches and a shorter branch. Gonophore nearly traingular in shape. With well developed nectosac, broad ostium and 4 radial canals.

Synonym (s)
Amphicaryon intermedia Daniel, 1977
Maresearsia sphaera Stepanjants, 1967
Maresearsia praeclara Totton, 1954
(Senior synonym)
Amphicaryon intermedia Daniel, 1970
(Junior synonym)
Maresearsia sphaera Stepanjants, 1967
(Junior synonym)
Maresearsia praeclara Totton, 1954
Maresearsia praeclara Daniel, 1974

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic


• West Coast 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 -
  • Sealifebase Available at -
  • Boltovskoy, D (Ed.) Zooplankton of the South Atlantic Ocean Marine Species Identification Portal Available at -

Page last updated on:2011-09-09

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