Abstract
The metagenetic Lafoeina is one of the many leptothecate genera with uncertain affinities, the life cycles of its constituent species being poorly known. The genus has traditionally been recognized as belonging to the polyphyletic superfamily Campanulinoidea, family Campanulinidae, taxa that artificially group together a variety of probably unrelated species. Life-history studies are the most important method to link species that were originally based solely on medusa or polyp stage, as is the case of Lafoeina spp. Findings of Lafoeina amirantensis at the coast of São Sebastião (São Paulo, Brazil) allowed us to study its juvenile medusa and to observe new facts pertinent to the classification of the Order Leptothecata. The hydrotheca of L. amirantensis is similar to those of the genus Cuspidella, except for the absence of nematophores in the latter. The newly released medusa of L. amirantensis is similar in morphology to the young medusae of Cirrholovenia tetranema, a species belonging to the family Cirrholoveniidae (superfamily Lovenelloidea).References
Agassiz, L. (1862) Contributions to the Natural History of the United States of America. Little Brown, Boston, 380 pp.
Allman, G.J. (1871) On a mode of reproduction of spontaneous fission in the hydroids. Quarterly Journal of microscopical science, n.s., 11, 18–21.
Allwein, J. (1967) North American hydromedusae from Beaufort, North Carolina. Videnskabelige Meddelelser fra dansk Naturhistorisk Forening, 130, 117–136.
Berrill, N.J. (1953) Growth and form in gymnoblastic hydroids. VII. Growth and reproduction in Syncoryne and Coryne. Journal of Morphology, 92(2), 273–302.
Boero, F. & Bouillon, J. (1993) Zoogeography and life cycle patterns of Mediterranean hydromedusae (Cnidaria). Biological Journal of the Linnean Society, 48, 239–266.
Boero, F. & Fresi, E. (1986) Zonation and evolution of a rocky bottom hydroid community. P.Z.N.I. Marine Ecology, 7(2), 123–150.
Bouillon, J. (1971) Sur quelques hydroïdes de Roscoff. Cahiers de Biologie Marine, 12, 323–364.
Bouillon, J. (1984) Révision de la famille des Phialuciidae (Kramp, 1955) (Leptomedusae, Hydrozoa, Cnidaria), avec un essai de classification des Thecatae–Leptomedusae. Indo-Malayan zoology, 1, 1–24.
Bouillon, J. (1985) Essai de classification des hydropopypes–hydroméduses (Hydrozoa, Cnidaria). Indo-Malayan zoology, 2, 29–243.
Bouillon, J. (1999) Hydromedusae. In: Boltovskoy, D. (Ed), The South Atlantic Zooplankton. Backhuys Publishing, Leiden, pp. 385–465.
Brandt, J.F. (1834) Prodromus descriptionis animalium ab H. Mertens observatorum. Fascic. I. Polypos, Acalephos Discophoras et Siphonophoras, nec non Echinodermata continins. Recueil des Actes de la Séance Publique de la Séance Publique de L’Académie Impériale des Sciences de St. Petersbourg, (1833), 201–275.
Brinckmann, A. (1965) The life cycle of the medusa Cirrholovenia tetranema Kramp, 1959 (Leptomedusae, Lovenellidae) with a hydroid of the genus Cuspidella Hincks. Canadian Journal of Zoology, 43, 13–15.
Brinckmann-Voss, A. (1970) Anthomedusae/Athecatae (Hydrozoa, Cnidaria) of the Mediterranean. Part I. Capitata. Fauna e Flora del Golfo di Napoli, 39, 1–96.
Calder, D.R. (1970) Thecate hydroids from the shelf waters of northern Canada. Journal of the Fisheries Research Board of Canada, 27, 1501–1547.
Calder, D.R. (1991a) Shallow-water hydroids of Bermuda. The Thecatae, exclusive of Plumularioidea. Life sciences contributions, Royal Ontario Museum, 154, 1–140.
Calder, D.R. (1991b) Association between hydroid species assemblages and substrate types in the mangal at Twin Cays, Belize. Canadian Journal of Zoology, 69, 2067–2074.
Calder, D.R. (1991c) Abundance and distribution of hydroids in a mangrove ecosystem at Twin Cays, Belize, Central America. Hydrobiologia, 216/217, 221–228.
Calder, D.R. (1998) Hydroid diversity and species composition along a gradient from shallow waters to deep sea around Bermuda. Deep-Sea Research, I, 45, 1843–1860.
Calder, D.R., Mallinson, J.J., Collins, K. & Hickman, C.P. (2003) Additions to the hydroids (Cnidaria) of the Galápagos, with a list of species from the islands. Journal of Natural History, 37, 1173–1218.
Calder, D.R. & Maÿal, E.M. (1998) Dry season distribution of hydroids in a small tropical estuary, Pernambuco, Brazil. Zoologische Verhandelingen, 323, 69–78.
Calder, D.R. & Vervoort, W. (1998) Some hydroids (Cnidaria: Hydrozoa) from the Mid-Atlantic Ridge, in the North Atlantic Ocean. Zoologische Verhandelingen, 319, 1–65.
Cornelius, P.F.S. (1995) North-west European thecate hydroids and their medusae. Synopses of the British Fauna (new series). Nº. 50, part 1. Linnean Society of London, London, 347 pp.
Crowell, S. (1982) Systematics, growth, and development of Lafoeina maxima (=Keratosum complexum) (Hydrozoa, Campanulinidae). Biological Bulletin, 162, 246–255.
Gibbons, M.J. & Ryland, J.S. (1989) Intertidal and shallow water hydroids from Fiji. I. Athecata to Sertulariidae. Memoirs of the Queensland Museum, 27, 377–432.
Goy, J. (1979) Méduses. 35. In: Campagne de la Calypso au large des côtes Atlantiques de L’Amerique du Sud (1961–1962). Annales de I’Institut Océanographique, 11, 263–296.
Hadzi, J. (1915) Resultati bioloskih istrazivanja Jadranskoga mora. Hidroidi I. Prirodoslovna istrazivanja Hrvatske i Slavonije, 7, 23–81.
Hadzi, J. (1917) Resultati bioloskih istrazivanja Jadranskoga mora. Hidroidi II. Halocordyle epizoica g. n., sp. n.; Lafoeina vilae-velebiti sp. n. Prirodoslovna istrazivanja Hrvatske i Slavonije, 11, 1–59.
Hincks, T. (1866) On new British Hydroida. Annals and Magazine of Natural History (series 3), 18, 296–299.
Hincks, T. (1868) A history of the British hydroid zoophytes. Van Voorst, London, 338 pp.
Jäderholm, E. (1904) Mitteilungen ueber einige von der Schwedischen Antarctic-Expedition 1901–1903 eingesammelte Hydroiden. Archives de Zoologie expérimentale et générale, series 4, 3, 1–14.
Kramp, P.L. (1959) Some new and little-known Indo–Pacific medusae. Videnskabelige meddelelser fra Dansk Naturhistorisk Forening, 121, 223–259.
Kramp, P.L. (1961) Synopsis of the medusae of the world. Journal of Marine Biological Association of United Kingdon, 40, 1–469.
Kubota, S. (1995) Cnidome and growth of a medusa of Cirrholovenia tetranema (Leptomedusae, Cirrholovenidae) in Japan. Publications of the Seto Marine Laboratory, 36(5/6), 365–378.
Levinsen, G.M.R. (1893) Meduser, ctenophorer og hydroider fra Grønlands vestkyst, tilligemed bemaerkninger om hydroidernes systematic. Videnskabelige meddelelser fra Dansk Naturhistorisk Forening, (1892) (series 5), 4, 143–212, 215–220.
Lindner, A. & Migotto, A.E. (2002) The life cycle of Clytia linearis and Clytia noliformis: metagenic campanulariids (Cnidaria: Hydrozoa) with contrasting polyp and medusa stages. Journal of the Marine Biological Association of the United Kingdom, 82, 541–553.
McCrady, J. (1859) Gymnopthalmata of Charleston Harbour. Proceedings of the Elliott Society of Natural History, 1, 103–221.
Migotto, A.E. (1996) Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of São Sebastião, Brazil, including a checklist of Brazilian hydroids. Zoologische Verhandelingen, 306, 1–125.
Migotto, A.E. & Andrade, L.P. (2000) The life cycle of Hebella furax (Cnidaria: Hydrozoa): a link between a lafoeid hydroid and a laodiceid medusa. Journal of Natural History, 34, 1871–1888.
Millard, N.A.H (1975) Monograph on the Hydroida of southern Africa. Annals of the South Africa Museum, 68, 1–513.
Millard, N.A.H & Bouillon, J. (1973) Hydroids from the Seychelles (Coelenterata). Koninklijk Museum voor Midden-Afrika. Zoologische documentatie, 206, 1–106.
Moreira, G.S. (1973) On the diurnal vertical migration of hydromedusae off Santos, Brazil. Publications of the Seto Marine Biological Laboratory, 20, 537–566.
Moreira, G.S. (1975) Sobre duas Leptomedusae do litoral do estado de São Paulo. Ciência e Cultura, 27(5), 556–558.
Moreira, G.S. (1978) A preliminary laboratory study on the salinity and temperature tolerances of some medusae from the São Paulo coast, Brazil. Boletim do Instituto Oceanográfico, 27(2), 45–55.
Naumov, D.V. (1969) Hydroids and Hydromedusae of the USSR. Israel Program for scientific translation, Jerusalem, 463 pp.
Navas, D. (1971) New records of hydromedusae from the Indian Ocean. Contribuições Avulsas do Instituto Oceanográfico, Oceanografia Biológica, 22, 1–23.
Navas-Pereira, D. (1981) Distribuição das hidromedusas (Cnidaria, Hydrozoa) na região da plataforma continental do Rio Grande do Sul. In: Seminário de Biologia Marinha. Acadêmia Brasileira de Ciências, São Paulo, pp. 221–276.
Navas-Pereira, D. & Vannucci, M. (1991) The hydromedusae and water masses of the Indian Ocean. Boletim do Instituto Oceanográfico, 39(1), 25–60.
Nogueira, C.C., Grohmann, P.A. & da Silva, V.M.A.P. (1997) Hydroids from the vicinity of a nuclear power plant site (CNAAA–Unidade 1) at Angra-dos-Reis, Rio de Janeiro, southeastern Brazil. In: den Hartog J.C. (Ed) Proceedings of the 6th International Conference on Coelenterate Biology. Nationaal Natuurhistorisch Museum, Leiden, pp. 365–369.
Panteleeva, N.N. (1999) Obelia longissima (Pallas, 1766) and Obelia geniculata (L., 1758) (Hydrozoa, Thecaphora, Campanulariidae) in the Barents Sea. Morphology, distribution, ecology and special life history features. Zoosystematica Rossica, suppl. 1, 51–65.
Pictet, C. (1893) Etude sur les hydraires de la Baie d’Amboine. Revue Suisse de zoologie, 1, 1–64.
Ramil, F & Vervoort, W. (1992) Report on the Hydroida collected by the “Balgium” expedition in and around the Strait of Gibraltar. Zoologische Verhandelingen, 277, 1–262.
Rees, W.J. (1936) On a new species of hydroid, Staurocoryne filiformis, with a revision of the genus Staurocoryne. Journal of the Marine Biological Association of the United Kingdom, 21(1), 135–142.
Russell, F.S. (1953) The medusae of the British Isles. Anthomedusae, Leptomedusae, Limnomedusae, Trachymedusae and Narcomedusae. Cambridge University Press, Cambridge, 530 pp.
Sars, G.O. (1874) Bidrag til Kundskaben om norges hydroider. Forhandlinger i Videnskabs-Selskaber i Kristiana, (1873), 9–150.
Schuchert, P. (2001) Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Grønland, Bioscience, 53, 1–184.
Schuchert, P. (2003) Hydroids (Cnidaria, Hydrozoa) of the Danish expedition to the Kei Islands. Steenstrupia, 27(2), 137–256.
Tronolone, V.B. (2001) Hidromedusas (Cnidaria, Hydrozoa) do canal de São Sebastião, SP. Master Thesis. Instituto de Biociências, Universidade de São Paulo, 179 pp.
Vannucci, M. (1960) On the young stage of Eucheilota duodecimalis (Leptomedusae). Anais da Academia Brasileira de Ciências, 38(3/4), 395–397.
Watson, J.E. (2000) Hydroids (Hydrozoa: Leptothecatae) from the Beagle Gulf and Darwin Harbour, northern Australia. The Beagle, Records of the Museum and Art Galleries of the Northern Territory, 16, 1–83.
Werner, B. (1968) Polypengeneration un Entwicklungsgeschichte von Eucheilota maculata (Thecata–Leptomedusae) mit einem Beitrag zur Methodik der Kultur mariner Hydroiden. Helgoländer Wissenschaftliche Meeresuntersuchungen, 18, 136–168.