Membranipora tuberculata   (Bosc,  1802) (Bryozoan)
Organism information awaits expert curation
Class: Gymnolaemata

Image copyrights: Biodiversity Institute of Ontario

Zooecia variable in proportions, basal wall uncalcified. Operculum not quite distal. A pair of strong, rounded tubercles at the proximal end of each zooecium. They appear to be formed as folds of the distal rim as they are open and covered by membrane on the distal side. They are very variable, frequently fusing across the end of the zooecium and occasionally they are cornuate, extending forward with the points curved toward each other, and more rarely a third tubercle is developed between these in the midline. Cryptocyst little developed in young zooecia, more extensive in the older state, rather distantly tuberculated. Rosette-plates two lateral, multiporous; two terminal or a single row of septula at least twelve in number, across the entire width of the wall, close to its basal edge.

The zoarium forms a white lace-work on Sargassum floating over the wide oceans and occurs on attached algae along shore in warmer waters.

Synonym (s)
Flustra tuberculata Bosc (pars), 1802
Flustra tuberculata Bosc (pars), 1830
Membranipora tuberculata Busk, 1858
Membranipora tuberculata Thornely, 1907
Membranipora tehuelcha Robertson, 1908
Membranipora tehuelcha Robertson, 1921
Membranipora tuberculata Marcus, 1922
Nichtina tuberculata Harmer, 1926
Membranipora tuberculata Osburn, 1950

Common Name (s)
Economic Importance and Threats

Habitat:  Open Sea, Coastal


• Orissa (Lat: 20.33) (Long: 86) INDIA (Record: 1908)
• Andhra Pradesh, Vishakhapatnam Harbour INDIA (Record: 1999)

Literature Source(s)
  • Menon, NR and Menon, NN (2006) Taxonomy of Bryozoa from the Indian EEZ. A monograph Ocean Science and Technology Cell on Marine Benthos, Kochi and Centre for Marine Living resources and Ecology, Kochi 263 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Barcode Of Life Data Systems Available at -
  • Balaji, M; Rao, MV and Rao, KS (1999) Natural resistance of ten species of catamaran grade timber to marine wood borer attack at Visakhapatnam and Kochi harbours Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 41(1&2) 96-102 Available at - NIO, Goa

Page last updated on:2010-10-01

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