Eudoxoides spiralis   (Bigelow,  1911) (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Polygastric phase: Anterior nectophore: About 11 mm long, with 5 twisted longitudinal slightly serrated ridges- dorsal, 2 laterals and left ventral ridges complete reaching apex and base, right ventral arising near apex very close to left ventral ridge. Somatocyst 1.5 mm long, conical, not truncated. Baso-ventral margins concave, ending in serrated prominent teeth. Mouth plate divided into two lanceolate wings, right one larger than the left; left wing with triangular flap.

Eudoxid phase: Bract 2.1 mm long; gonophores 3.25 mm long; with shorter neck-shield. Phyllocyst cylindrical reaching apex. No teeth on margin of neck-shield. Sutural surface at right angle with dorsal wall of hydroecium. Hydroecium not deep. Gonophores pedicel short, almost truncated at articulating end. Four serrated twisted ridges ending in teeth. Manubrium long, bearing either male or female germ cells.

Synonym (s)
Diphyes spiralis Bigelow, 1911
Eudoxoides spiralis Daniel, 1974

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic, Coastal


• Bay of Bengal INDIA (Record: 1962-1965)
• Arabian Sea (Record: 1962-1965)
• Andaman and Nicobar Islands, Andaman Islands INDIA (Record: 1962-1965)
• Tamil Nadu, Chennai Coast INDIA (Record: 1962-1965)
• Lakshadweep (Lat: 9.68) (Long: 75.16) INDIA (Record: 17/11/1963)
• Westcoast (Lat: 16.25) (Long: 72.63) INDIA (Record: 07/12/1963)
• Westcoast (Lat: 14.53) (Long: 73.33) INDIA (Record: 11/12/1963)
• Westcoast (Lat: 12.6) (Long: 74.16) INDIA (Record: 21/12/1963)
• Lakshadweep Sea INDIA
• South West Coast INDIA
• West Coast INDIA
• Lakshadweep Sea 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 -
  • Sealifebase Available at -
  • Rengarajan, K (1973) Siphonophores obtained during the cruises of R. V. Varuna from the west coast of India and the Laccadive Sea Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 15(1) 125-129 Available at -
  • Rengarajan, K (1983) Quantitative and seasonal abundance of siphonophores along the southwest coast of India and the Laccadive sea Journal of marine biological association of India The marine biological association of India 25(1&2) 17-40 Available at - NIO, Goa
  • Rengarajan, K (1975) Distribution of siphonophores along the west coast of India and the Laccadive sea Journal of the marine biological association of India The marine biological association of India 17(1) 56-72 Available at - NIO, Goa
  • Boltovskoy, D (Ed.) Zooplankton of the South Atlantic Ocean Marine Species Identification Portal Available at -

Page last updated on:2011-09-08

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