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Type: Articles
Published: 2012-06-08
Page range: 1–29
Abstract views: 36
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A new genus of Lanceoporidae (Bryozoa, Cheilostomata)

Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
Bryozoa Mediterranean NE Atlantic Australia new species ovicell closure Schizoporelloidea Smittinoidea Bitectiporidae Schizomavella Calyptotheca

Abstract

A new genus of cheilostomate bryozoan, Stephanotheca n. gen., is introduced for several species previously placed in thegenus Schizomavella. This new genus differs from Schizomavella mainly in its ovicell closure, with a dimorphic orificeclosed by the zooidal operculum. Nine species are placed in the genus Stephanotheca n. gen. Stephanotheca barrosoi n.sp., type species of the genus, was previously reported as Schizomavella ambita. Stephanotheca ambita is redescribedfrom the original Australian material, while Stephanotheca watersi n. sp., previously reported as Schizomavella ambitaand Schizomavella rudis, is described from material collected in the western Mediterranean. Stephanotheca victoriensisn. sp. is described for other Australian specimens. The rest of the species are closely similar, so they are grouped in theStephanotheca ochracea species group. Stephanotheca ochracea, redescribed from its holotype, is the only Atlantic spe-cies of the genus. A lectotype and paralectotypes are chosen for Stephanotheca monoecensis. Stephanotheca triangulatan. sp. and Stephanotheca perforata n. sp. were previously reported as S. ochracea. Finally, Stephanotheca arrogata is re-described from the original material. The structure of the ovicell of Stephanotheca, its opening, with a dimorphic orificeclosed by the zooidal operculum, and the presence of zooids with extremely enlarged orifices suggest that this genus be-longs to the family Lanceoporidae, which must be transferred from the Schizoporelloidea to the Smittinoidea owing to its smittinoid ovicell.

References

  1. Barroso, M.G. (1923) Notas sobre los briozoos marinos españoles. XIII. Boletín de la Real Sociedad Española de Historia Natural (Biología), 23, 249–251.

    Barroso, M.G. (1935) Notas sobre briozoos españoles. Boletín de la Real Sociedad Española de Historia Natural (Biología), 35, 373–380.

    Berning, B. (2006) The cheilostome bryozoan fauna from the Late Miocene of Niebla (Guadalquivir Basin, SW Spain): environmental and biogeographic implications. Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 90, 7–156.

    Bock, P. & Hayward, P.J. (2012a) Schizomavella Canu & Bassler, 1917. In: Bock, P. & Gordon, D.P. (2012) World list of Bryozoa. Available from: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id =110829 (Accessed February 2012).

    Bock, P. & Hayward, P.J. (2012b) Lanceoporidae. In: Bock, P. & Gordon, D.P. (2012) World list of Bryozoa. Available from: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=110759 (Accessed February 2012).

    Calvet, L. (1902) Bryozoaires marins des côtes de Cette. Travaux de l'Institut de Zoologie de l'Université de Montpellier et de la Station zoologique de Cette, 12, 1–103.

    Calvet, L. (1927) Bryozoaires de Monaco et environs. Bulletin de l'Institut océanographique, Monaco, 24, 1–46.

    Canu, F. & Bassler, R.S. (1917) A synopsis of American early Tertiary Cheilostome Bryozoa. United States National Museum Bulletin, 96, 1–87.

    Canu, F. & Bassler, R.S. (1929) Bryozoa of the Philippine region. United States National Museum Bulletin, 100, 1–685.

    Chimonides, P.J. & Cook, P.L. (1993) Notes on Parmularia MacGillivray (Bryozoa: Cheilostomata) from Australia. Memoirs of the Queensland Museum, 33, 41–48.

    Gautier, Y.-V. (1957) Bryozoaires des Iles Baléares. Résultats des Campagnes « Prof. Lacaze-Duthiers ». Vie et Milieu, 2, 205–222.

    Gautier, Y.-V. (1962) Recherches écologiques sur les Bryozoaires Chilostomes en Méditerranée occidentale. Recueil des travaux de la Station marine d'Endoume, 38 (25), 1–434.

    Gordon, D.P. (1989) The marine fauna of New Zealand: Bryozoa: Gymnolaemata (Cheilostomida Ascophorina) from the western south Island continental shelf and slope. New Zealand Oceanographic Institute Memoir, 97, 1–158.

    Gordon, D.P. (2011) Genera and subgenera of Cheilostomata – Working list for treatise. Version of September 2011. Unpublished, available from author.

    Harmelin, J.-G., López de la Cuadra, C.M. & García-Gómez, J.C. (1989) Description et variabilité de Calyptotheca obscura n.sp. (Bryozoa, Cheilostomata). Bulletin du Muséum National d'Histoire Naturelle, sér. 4, 11, 295–305.

    Harmer, S.F. (1957) The Polyzoa of the Siboga Expedition, Part 4. Cheilostomata Ascophora II. Siboga Expedition Reports 28d, 641–1147.

    Hassall, A.H. (1842) Remarks on the genus Lepralia of Dr. Johnston with descriptions of six undescribed species. Annals and Magazine of Natural History, ser. 1, 9, 407–414.

    Haswell, W.A. (1880) On some Polyzoa from the Queensland coast. Proceedings of the Linnean Society of New South Wales, 5, 33–44.

    Hayward, P.J. (1974) Studies on the Cheilostome Bryozoan fauna of the Aegean island of Chios. Journal of Natural History, 8, 369–402.

    Hayward, P.J. & McKinney, F.K. (2002) Northern Adriatic Bryozoa from the vicinity of Rovinj, Croatia. Bulletin of the American Museum of Natural History, 270, 1–139.

    Hayward, P.J. & Thorpe, J.P. (1995) Some British species of Schizomavella (Bryozoa: Cheilostomata). Journal of Zoology, London, 235, 661–676.

    Hayward, P.J. & Ryland, J.S. (1999) Cheilostomatous Bryozoa. Part 2. Hippothoidea–Celleporoidea. Synopses of the British Fauna n.s. (2nd edn), 14, 1–416.

    Heller, C. (1867) Die Bryozoen des adriatischen Meeres. Verhandlungen der zoologisch-botanischen Gesellschaft in Wien, 17, 77–136.

    Hincks, T. (1862) Catalogue of the Zoophytes of South Devon and Cornwall. Annals and Magazine of Natural History, ser. 3, 9, 22–30, 200–207, 303–310, 467–475.

    Hincks, T. (1880) A History of the British marine Polyzoa, 2 vols. van Voorst. London.

    Jullien, J. & Calvet, L. (1903) Bryozoaires provenant des Campagnes de "l'Hirondelle" (1886–1888). Résultats des Campagnes Scientifiques du Prince de Monaco, 23, 1–188.

    Kluge, H. (1908). Beiträge zur Kenntnis der Bryozoen des Weissen Meeres. Ezhegodn. Zool. Mus. Acad. Sci., 12 for 1907, 515–540.

    Levinsen, G.M.R. (1909) Morphological and Systematic studies on the Cheilostomatous Bryozoa. Nationale Forfatterers Forlag, Copenhagen, 413 p.

    López de la Cuadra, C.M. (1991) Estudio sistemático de los Briozoos Queilostomados (Bryozoa: Cheilostomida) del Estrecho de Gibraltar y áreas próximas. Unpublished Ph.D. thesis, Universidad de Sevilla.

    MacGillivray, P.H. (1887) A catalogue of the marine Polyzoa of Victoria. Transactions of the Royal Society of Victoria, 23, 187–224.

    MacGillivray, P.H. (1895) A monograph of the Tertiary Polyzoa of Victoria. Transactions of the Royal Society of Victoria, 4, 1–166.

    Manzoni, A. (1869) Bryozoi pliocenici italiani. Sitzungsberichte der Akademie der Wissenschaften in Wien, (Abt. 1) 59, 17–28.

    Ostrovsky, A.N. (2008) Brood chambers in cheilostome Bryozoa: diversity and revised terminology. In: Hageman, S.J., Key, M.M.J. Jr., Winston, J.E. (eds), Proceedings of the 14th International Bryozoology Association Conference. Virginia Museum of Natural History, Special Publication, 15, 193–205.

    Ostrovsky, A.N., Nielsen, C., Vávra, N. & Yagunova, E.B. (2009) Diversity of the brooding structures in calloporid bryozoans (Gymnolaemata: Cheilostomata): comparative anatomy and evolutionary trends. Zoomorphology, 128, 13–35.

    Poluzzi, A. & Rosso, A. (1988) I tipi zoariali di un’associazione a Briozoi del Mar Ionio. Acta Naturalia de l’Ateneo Parmense, 24, 83–108.

    Reverter Gil, O. & Fernández Pulpeiro, E. (1995) Some species of Schizomavella (Bryozoa, Cheilostomatida) from the Atlanto-Mediterranean Region. Cahiers de Biologie Marine, 36, 259–275.

    Thornely, L.R. (1906) Additions and corrections. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, 4, 449–450.

    Waters, A.W. (1879) On the Bryozoa (Polyzoa) of the Bay of Naples. Annals and Magazine of Natural History, ser. 5, 3, 28–43.

    Waters, A.W. (1889) Bryozoa from New South Wales, North Australia, etc. Part 4. Annals and Magazine of Natural History, ser. 6, 4, 1–24.

    Zabala, M. (1986) Fauna dels Briozous dels Països Catalans. Institut d’Estudis Catalans, [Arxius de la Secció de Ciències 84], Barcelona. 833 + 3 p.

    Zabala, M. & Maluquer, P. (1988) Illustrated keys for the classification of Mediterranean Bryozoa. Treballs del Museu de Zoologia, Barcelona, 4, 1–294.