Published April 4, 2024 | Version v1
Taxonomic treatment Open

Tessaradoma Norman 1869

Description

Genus Tessaradoma Norman, 1869

Diagnosis. Colony erect, unjointed, attached by encrusting base. Frontal shield striated, granular, or smooth, with an umbonuloid component and marginal pores. Tubiform spiramen present. Primary orifice semicircular, concealed by projecting peristome. Adventitious avicularia present or absent. Ovicell peristomial, imperforate.

Type species. Pustulipora gracilis Sars, 1851.

Remarks. The type species is now regarded as a synonym of Tessaradoma boreale (Busk, 1860) (originally Onchopora borealis) (e.g., Hayward and Ryland 1979, 1999; Winston 2005; Denisenko 2014), but I believe that T. boreale from the Atlantic and Arctic Oceans may include two or more species as discussed by Winston (2005) and Souto et al. (2016), although Sars (1863) also considered Busk’s species as the synonym of T. gracile. Illustrations of the Arctic species (Smitt 1868; Kluge 1962) show smaller marginal pores and avicularia, and a more highly projecting peristome than the European species from Britain (Busk 1860; Alder 1864; Hincks 1880; Hayward and Ryland 1979, 1999), Denmark (Marcus 1940), southern Spain (Zabala and Maluquer 1988) and the Azores (Jullien and Calvet 1903). However, as Souto et al. (2016) pointed out, ontogenetic changes in zooids have not been sufficiently compared, and thus no consensus on the synonymy has been reached.

Notes

Published as part of Arakawa, Shinji, 2024, Descriptions of Three Cheilostomatid Bryozoan Species from the Continental Shelf off Boso Peninsula, Japan, pp. 99-110 in Species Diversity 29 (1) on page 100, DOI: 10.12782/specdiv.29.99, http://zenodo.org/record/10928489

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Linked records

Additional details

Biodiversity

Family
Tessaradomidae
Genus
Tessaradoma
Kingdom
Animalia
Order
Cheilostomatida
Phylum
Bryozoa
Scientific name authorship
Norman
Taxon rank
genus
Taxonomic concept label
Tessaradoma Norman, 1869 sec. Arakawa, 2024

References

  • Norman, A. M. 1869. Shetland Final Dredging Report. - Part II. On the Crustacea, Tunicata, Polyzoa, Echinodermata, Actinozoa, Hydrozoa, and Porifera. Report of the British Association for the Advancement of Science 1868: 247 - 336.
  • Sars, M. 1851. Beretning om en i Sommeren 1849 foretagen zoologisk Reise i Lofoten og Finnmarken. Nyt Magazin for Naturvidenskaberne 6: 121 - 211.
  • Busk, G. 1860. Shetland Polyzoa. Collected by Mr. Barlee. (Continued and concluded). Quarterly Journal of Microscopical Science 8: 213 - 214, pls 28 - 29. doi: 10.1242 / jcs. s 1 - 8.31.213
  • Hayward, P. J. and Ryland, J. S. 1979. Synopsis of the British Fauna (New Series) 14. British Ascophoran Bryozoans. Academic Press, London, 312 pp.
  • Hayward, P. J. and Ryland, J. S. 1999. Synopsis of the British Fauna (New Series) 14 (Second Edition). Cheilostomatous Bryozoa. Part 2. Hippothooidea - Celleporoidea. Field Studies Council, Shrewsbury, 416 pp.
  • Winston, J. E. 2005. Re-description and revision of Smitt's " Floridan Bryozoa " in the collection of the Museum of Comparative Zoology, Harvard University. Virginia Museum of Natural History Memoir 7: i - x + 1 - 147.
  • Denisenko, N. V. 2014. Deep-sea fauna of European seas: An annotated species check-list of benthic invertebrates living deeper than 2000 m in the seas bordering Europe. Bryozoa. Invertebrate Zoology 11: 89 - 98. doi: 10.15298 / invertzool. 11.1.08
  • Souto, J., Berning, B., and Ostrovsky, A. N. 2016. Systematics and diversity of deep-water Cheilostomata (Bryozoa) from Galicia Bank (NE Atlantic). Zootaxa 4067: 401 - 459. doi: 10.11646 / zootaxa. 4067.4.1
  • Sars, M. 1863. Beskrivelse over nogle Norske Polyzoer. Forhandlinger i Videnskabs-Selskabet i Christiania 1862: 141 - 167.
  • Smitt, F. A. 1868. Kritisk forteckning ofver Skandinaviens Hafs-Bryozo- er. IV. Ofversigt af Kongl. Vetenskaps-Academiens Forhandlingar 24 (Bihang): 1 - 230, pls 24 - 28.
  • Kluge, G. A. 1962. Opredeliteli po faune SSSR, Izdavaemye Zoologicheskim Institutom Academii Nauk SSSR 76. Msahnki Severnykh Morei SSSR [Keys on the Fauna of the USSR Published by the Zoological Institute, Academy of Sciences of the USSR 76. Bryozoa of the Northern Seas of the USSR]. Akademii Nauk SSSR, Moskow, 584 pp. [In Russian]
  • Alder, J. 1864. Descriptions of new British Polyzoa, with remarks on some imperfectly known species. Quarterly Journal of Microscopical Science, New Series 4: 95 - 109, pls 2 - 5. doi: 10.1242 / jcs. s 2 - 4.14.95
  • Hincks, T. 1880. A History of the British Marine Polyzoa. Vol. 1 - Text, Vol. 2 - Plates. John Van Voorst, London, cxxii + 601 pp, 83 pls. doi: 10.5962 / bhl. title. 3978
  • Marcus, E. 1940. Mosdyr (Bryozoa eller Polyzoa). Danmarks Fauna 46: 1 - 401.
  • Zabala, M. and Maluquer, P. 1988. Illustrated keys for the classification of Mediterranean Bryozoa. Treballs del Museu de Zoologia 4: 1 - 294.
  • Jullien, J. and Calvet, L. 1903. Bryozoaires provenant des campagnes de l'Hirondelle (1886 - 1888). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, Prince Souverain de Monaco 23: 1 - 188, pls 1 - 18. doi: 10.5962 / bhl. title. 2169 [in part]