Spiroporina vertebralis   Stoliczka,  1865 (Bryozoan)
Organism information awaits expert curation
Class: Gymnolaemata

Branches with an axial row of cylindrical kenozooecia, the main ones stout, with alternating whorls of 13 zooecia or fewer. Zooecia not distinctly outlined, with numerous small pores, often slit-like and narrower than the interspaces. Peristomes short, their edge typically bearing a pair of minute avicularia proximally, their rostra acute, directed inwards; less often with a distal avicularium. Frontal avicularia of the same kind but generally larger, mostly at the lateral junctions of two zooecia; directed proximally, others, with an inconsistent orientation, sometimes found elsewhere. Spiramen distant from the secondary orifice. Ovicells elongate, deeply immersed sometimes visible as swellings on the distal side of the peristomes. Opercula sinuate.

Synonym (s)
Spiroporina vertebralis Stoliczka, 1865
Myriozoum australiense Haswell, 1880
Haswellia australiensis Busk, 1884
Haswellia australiensis Levinsen, 1909
Haswellia australiensis Waters, 1913
Haswellia australiensis Canu and Bassler, 1929
Spiroporina vertebralis Harmer, 1957

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Andaman Islands INDIA (Record: 1921)

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 - http://www.marinespecies.org

Page last updated on:2010-10-05

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