Ceratocymba dentata   (Bigelow,  1918) (Hydrozoan)
Organism information awaits expert curation
Class: Hydrozoa

Polygastric phase: Anterior nectophore: Upto 11 mm in length, opaque, nearly cuboidal in shape, with prominent, serrated ridges-laterals expanded into wings; horizontal and transverse apical ridges absent. Dorsal facet triangular, strongly bowed with heavily serrated lateral margins and deeply emarginated base; its apex produced into a short peak with apex of nectosac extending into it.

Posterior nectophore: Upto 55 mm in length, three times as long as wide, opaque, with prominent serrated ridges, dorsal vestigeal, ending in a large strong tooth; lateral ridges take a twisted course, ending in smaller teeth around ostium. Right ventral hydroecial wing bear 16 comb-teeth; left ventral wing with 7 spiny teeth on thickened basal end; both end in unequal teeth at base.

Eudoxid phase: Bract: about 20 mm long and 18 mm broad; large, strong and opaque. Dorsal median ridge arched, prominent and complete; left lateral ridge incomplete, always joining apico-dorsal ridge, not reaching posterior margin. Phyllocyst median thick, posteriorly directed branch occupying only anterior half of bract.

Gonophores: Two gonophores (male & female) in same eudoxid, mirror images of each other, large, 11.3 mm in length, with broad proximal end. Ridges prominent, more or less like that of posterior nectophore with basal halves well serrated; a large conspicuous hook-like tooth occur from one of the hydroecial wing, curved toward floor of hydroecium. Ostial teeth prominent.

Synonym (s)
Abyla dentata Bigelow, 1918
Ceratocymba dentata Daniel, 1974

Common Name (s)
Economic Importance and Threats

Habitat:  Demersal


• Bay of Bengal (Lat: 15) (Long: 90) INDIA
• Arabian Sea INDIA (Record: 1962-1965)
• Bay of Bengal INDIA (Record: 1962-1965)
• Kerala, Off Kochi INDIA (Record: 1962-1965)
• Andaman and Nicobar Islands, Nicobar Islands INDIA (Record: 1962-1965)

Literature Source(s)
  • 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
  • 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 - http://www.marinespecies.org
  • Sealifebase Available at - http://www.sealifebase.org/
  • 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

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