Heteropyramis maculata   Moser,  1952 (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Polygastric phase: Anterior nectophore: Upto 13 mm in length; pyramidal, with 5 longitudinal ridges, not dividing into two; without ostial teeth or mouth plate. Hydroecium conical, with broad ostium extending to 2/3rd of nectophore. Series of characteristic opaque spots on lateral ridges. Nectosac pear-shaped, 6.5 mm long lying below somatocyst. Somatocyst with oblique spindle-shaped basal portion and short thin vertical branch.

Eudoxid phase: Bract pyramidal, with four ridges at apex, broad neck-shield. Phyllocyst with main median branch similar to somatocyst of anterior nectophore in shape and two curved lateral branches extending into neck-shield. Opaque spots at tip and at base of dorso-lateral ridges.

Gonophores: With 5 ridges with opaque spots at bases of dorso-lateral ridges.

Synonym (s)
Heteropyramis maculata Daniel, 1974
Heteropyramis maculata Moser, 1925

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic, Coastal


• Bay of Bengal (Lat: 15) (Long: 90) INDIA
• Bay of Bengal (Record: 1962-1965)
• 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
  • 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 - http://www.marinespecies.org
  • 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 - http://species-identification.org/species.php?species_group=Zsao&menuentry=inleiding

Page last updated on:2011-09-08

Back to Search