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DOI: http://dx.doi.org/10.11646/zootaxa.3955.4.8

Bryozoans from Rio Grande do Sul Continental Shelf, Southern Brazil

LAÍS V. RAMALHO, LAURO CALLIARI

Abstract


The continental shelf of Rio Grande do Sul (RS) is predominantly composed of unconsolidated sediments with a few hard substrates represented principally by beachrock. In this area there are elongate deposits of shell gravel material which are interpreted as indicators of the palaeo-shorelines. These Pleistocene deposits are overlapped by Holocene sediments (Recent), but are exposed during erosive events caused by extra-tropical cyclones, which provide the mixture of both sediments mainly during autumn and winter. The few studies on bryozoans made in this area previously recorded seven species, one fossil and the other six from Recent fluvial and marine environments. The aim of the present study was to describe the eight most abundant bryozoan species that occur in the inner RS shelf. Of these, four are new records for RS State (Arachnopusia aff. pusae, Hippomonavella brasiliensis, Turbicellepora pourtalesi, and Lifuella gorgonensis), and the other four are new to science (Chaperia taylori, Micropora nodimagna, Cellaria riograndensis, and Exochella moyani).

 


Keywords


Taxonomy, Cheilostomata, Chaperia, Micropora, Cellaria, Arachnopusia, Exochella, Hippomonavella, Turbicellepora, and Lifuella

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References


Barbosa, M.M. (1967) Conopeum commensale K.M., em depósito de maré, na Praia do Albardão, Santa Vitória do Palmar, RS (BRYOZOA- PLEISTOCENO?). Anais da Academia Brasileira de Ciências, 39 (2), 279–283.

Calliari, L.J. & Abreu, J.G.N. (1984) Litologia da Plataforma continental interna adjacente a cidade do Rio Grande, RS através da Interpretação de registros de sonar de varredura lateral e amostragem superficial. Anais do 33° Congresso Brasileiro de Geologia, 4, 1553–1564.

Canu, F. (1908) Iconographie des bryozoaires fossiles de l'Argentine, pt 1. Annales Musee Nacional Buenos Aires, 10, 245–341.

Cocito, S., Ferdeghini, F., Pisaroni, S. & Bedulli, D. (2002) Influence of colony morphology on associated biota diversity in four Bryozoa. In: Wyse Jackson, P.N., Butter, C.J. & Spencer-Jones, M.E. (Eds), Bryozoan Studies 2001. Lisse: Swets & Zeitlinger, Abingdon, Exton, Tokyo, pp. 83–88.

Cook, P.L. (1968) Bryozoa (Polyzoa) from the coasts of tropical West Africa. Atlantide Report, 10, 115–262.

Cook, P.L. (1981) The potential of minute Bryozoan colonies in the analysis of deep sea sediments. Cahiers de Biologie Marine, 22, 89–106.

Cook, P.L. & Chimonides, P.J. (1994) Notes on the family Cupuladriidae (Bryozoa), and on Cupuladria remota sp.n. from the Marquesas Islands. Zoologica Scripta, 23, 251–268.

Gliesch, R. (1925) A fauna de Torres (Rio Grande do Sul). Officinas Graphicás da Escola de Engenharia, 1–75.

Gordon, D.P. & d’Hondt, J.L. (1997) Bryozoa: Lepraliomorpha and other Ascophorina from New Caledonian waters. Mémoires du Muséum National d'Histoire Naturelle. (Résultats des Campagnes MUSORSTOM, 18 (176), 9–124.

Hastings, A.B. (1929) Notes on some little known Phylactolaematous Polyzoa and description of a new species from Tahiti. Annals & Magazine of Natural History, series, 10 (3), 300–310.

Hastings, A.B. (1930) Polyzoa from the vicinity of the Panama Canal collected by Dr. C. Crossland on the cruise of the S.Y. "St George". Proceedings of the Zoological Society of London, 1929, 697–740.

Hayward, P. & Thorpe, J.P. (1988) Species of Arachnopusia (Bryozoa: Cheilostomata) collected by Discovery investigations. Journal of Natural History, 22, 773–799.

Jullien, J. (1888) Bryozoaires. Mission Scientifique du Cap Horn 1882–1883, 6, 1–92.

Kuklinski, P. (2005) Bryozoan mode of life in the high Arctic dynamic fjordic environment, Spitsbergen. In: Moyano, H.I., Cancino, J.M. &Wise Jackson, P.N. (Eds). Bryozoan Studies 2004. Taylor & Francis Group, London, pp. 153–160.

Lagaaij, R. (1963) New additions to the bryozoan fauna of the Gulf of Mexico. Institute of Marine Science, Texas, Publication, 9, 181–236.

Lopes, R.P., Brião, C. & Buchmann, F.S.C. (2006) Primeiro registro de fósseis de aves marinhas na planície costeira do Estado do Rio Grande do Sul, Brasil. Revista Brasileira de Geociências, 36, 688–650.

López Gappa, J. & Lichtschein, V. (1988) Geographic distribution of bryozoans in the Argentine Sea (South-Western Atlantic). Oceanologica Acta, 11, 89–99.

López Gappa, J., Carranza, A., Gianuca, N.M. & Scarabino, F. (2010) Membraniporopsis tubigera, an invasive bryozoan in sandy beaches of southern Brazil and Uruguay. Biological Invasions, 12 (5), 977–982.

Marcus, E. (1937) Briozoários marinhos brasileiros I. Boletim da Faculdade de Philosofia, Sciencias e Letras, Universidade de São Paulo, Zoologia, São Paulo, 1, 5–224.

Marcus, E. (1941) Sobre os Bryozoa do Brasil. Boletim da Faculdade de Philosofia, Sciencias e Letras, Universidade de São Paulo, Zoologia, 5, 3–208.

Marcus, E. (1949) Some Bryozoa from the Brazilian coast. Comunicaciones zoologicas del Museo de Historia natural de Montevideo, 53(3), 1–33.

Marcus, E. (1955) Notas sobre Briozoos Marinhos Brasileiros. Arquivo do Museu Nacional, 42, 273–324.

Meissner, M. (1893) Eine anscheinend neue Süsswsserbryozoe aus Brasilien. Sitz. Ber. Naturforsch Freund, 10, 260–262.

Osburn, R.C. (1914) The Bryozoa of the Tortugas Islands, Florida. Carnegie Institution of Washington Publication, 182, 183–222.

Ramalho, L.V., Muricy, G. & Taylor, P.D. (2005) Taxonomy and distribution of Bugula (Gymnolaemata: Anasca) in Rio de Janeiro state, Brazil. In: Moyano, H., Cancino, J. & Wise Jackson, P.N. (Eds), Bryozoan Studies, 2004. A.A. Balkema, Leiden, & C., 231–243.

Ramalho, L.V., Muricy, G. & Taylor, P.D. (2009) Cyclostomata (Bryozoa, Stenolaemata) from Rio de Janeiro State, Brazil. Zootaxa, 2057, 32–52.

Ramalho, L.V., Muricy, G. & Taylor, P.D. (2010) Taxonomy of Beania (Bryozoa, Flustrina) from Arraial do Cabo, Rio de Janeiro state, Brazil. Boletim do Museu Nacional, Nova Série – Zoologia, 66, 499–508.

Ruiz, G.M., Fofonoff, P.W., Carlton, J.T., Wonham, M.J. & Hines, A.H. (2000) Invasion of coastal marine communities in North America: apparent patterns, processes, and biases. Annual Review of Ecology and Systematics, 31, 481–531.

Ryland, J.S. (1976) Marine Bryozoans. In: Russell, Sir F.S. &Younge, Sir M. (Eds), Advances in Marine Biology, Academic Press, London, pp. 379–443.

Smitt, F.A. (1873) Floridan Bryozoa collected by Count L.F. de Pourtales, Part 2. Kongliga Svenska Vetenskaps-Akademiens Handlingar, 11 (4), 1–83.

Soule, J.D. & Soule, D.F. (1964) The Ectoprocta (Bryozoa) of Scammon's Lagoon, Baja California, Mexico. American Museum Novitates, 2199, 1–56.

Soule, J.D. & Soule, D.F. (1977) Fouling and Bioadhesion: Life strategies of Bryozoans. In: Wollacott, R.M. & Zimmer, R.L. (Eds), Biology of Bryozoans. Academic Press, New York, pp. 437–457.

Vieira, L.M., Migotto, A.E. & Winston, J.E. (2008) Synopsis and annotated checklist of Recent marine Bryozoa from Brazil. Zootaxa, 1810, 1–39.

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

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 Number 7, 1–147.

Winston, J.E. & Woollacott, R.M. (2009) Scientific results of the Hassler Expedition. Bryozoa. No. 1. Barbados. Bulletin of the Museum of Comparative Zoology, 159 (5), 239–300.

Winston, J.E., Vieira, L.M. & Woollacott, R.M. (2014) Scientific results of the Hassler Expedition. Bryozoa. No. 2. Brazil. Bulletin of the Museum of Comparative Zoology, 161 (5), 139–239.


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