Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2018-10-29
Page range: 68–84
Abstract views: 49
PDF downloaded: 1

Fatkullina imitata n. sp., second species of a unique cheilostome bryozoan genus with reversed-polarity zooidal budding, and new family Fatkullinidae

Department of Invertebrate Zoology and Aquatic Ecology, Biological Faculty, Perm State National Research University, Bukirev Street 15, GSP, Perm 614990, Russia.
National Institute of Water & Atmospheric Research, Private Bag 19401, Kilbirnie, Wellington, New Zealand.
Kamchatka Research Institute of Fisheries and Oceanography, Naberezhnaya 18, Petropavlovsk-Kamchatsky, 683000, Russia.
Bryozoa Fatkullina imitata Fatkullinidae new species new family reversed-polarity zooidal budding


A second species of the unique cheilostome bryozoan genus Fatkullina, with reversed-polarity zooidal budding, has been discovered. Fatkullina imitata n. sp. is described from the western Kamchatka shelf and upper slope of the Sea of Okhotsk. It differs from the type species, F. paradoxa, by the combination of orificial characters, the convex distal third of the frontal shield, and predominantly crimson coloration of dry colonies. A new family, Fatkullinidae, is erected to accommodate Fatkullina (as the type genus) and also Stomacrustula, Pachyegis and Lepralioides. The origin of reversed polarity zooidal budding is considered to arise as a consequence of the unique T-shaped geometry of the ancestrula and transverse daughter zooid followed by spiral budding of periancestrular and succeeding generations of zooids within the zone of astogenetic change.



  1. Androsova, E.I. (1958) Bryozoa of the order Cheilostomata of the northern part of the Sea of Japan. Issledovaniya Dal’nevostochnikh Morei SSSR, 5, 90–204. [in Russian]

    Arkhipova, E.A. (2009) Zoobenthos of the West Kamchatkan shelf. Issledovaniya Vodnykh Biologicheskikh Resursov Kamchatki i Severo-Zapadnoi Chasti Tikhogo Okeana, 14, 20–31. [in Russian]

    Busk, G. (1852) An account of the Polyzoa, and sertularian Zoophytes, collected in the voyage of the Rattlesnake, on the coasts of Australia and the Louisiade Archipelago, &c. In: MacGillivray, J. (Ed.), Narrative of the Voyage of H.M.S. Rattlesnake, commanded by the late Captain Owen Stanley... 1846–1850; Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, etc., to which is added the Account of Mr E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula (including Mr W. Carron's Narrative). T.W. Boone, London, pp. 343–402, pl. 1.

    Busk, G. (1854) Catalogue of Marine Polyzoa in the Collection of the British Museum. Part II. Cheilostomata (part). Trustees of the British Museum, London, viii + 66 pp. + 56 pls. [pp. i–viii + 55–120, pls. 69–124]

    Busk, G. (1856) Polyzoa collected by Mr. M'Andrew on the coast of Norway and Finmark in 1856. Annals and Magazine of Natural History, Series 2, 18, 32–36, pl. 1.

    Busk, G. (1860) Descriptions of new species of Polyzoa. Collected by George Barlee Esq., in Shetland. Quarterly Journal of Microscopical Science, 8, 123–125, pls 24–25.

    Canu, F. & Bassler, R.S. (1917) A synopsis of American Early Tertiary cheilostome Bryozoa. United States National Museum Bulletin, 96, 1–87, 6 pls.

    Canu, F. & Bassler, R. S. (1920) North American Early Tertiary Bryozoa. United States National Museum Bulletin, 106, 1–879, 162 pls.

    Chimonides, P.J. & Cook, P.L. (1994) Notes on the genus Cranosina (Bryozoa, Cheilostomida). Zoologica Scripta, 23, 43–49.

    Cook, P.L. (1965) Notes on the Cupuladriidae (Polyzoa, Anasca). Bulletin of the British Museum (Natural History), Zoology, 13, 151–187, 3 pls.

    Cook, P.L. (1985) Bryozoa from Ghana. A preliminary survey. Annales de la Musée Royale de l'Afrique Centrale, Sciences zoologiques, Tervuren, 238, 1–315.

    Cook, P.L. & Chimonides, P.J. (1984) Recent and fossil Lunulitidae (Bryozoa: Cheilostomata) 2. Species of Helixotionella gen. nov. from Australia. Journal of Natural History, 18, 255–270.

    Cook, P.L., Bock, P.E., Hayward, P.J. & Gordon, D.P. (2018) Class Gymnolaemata, Order Cheilostomata. In: Cook, P.L., Bock, P.E., Gordon, D.P. & Weaver, H.J. (Eds.), Australian Bryozoa. Vol. 2. Taxonomy of Australian Families. CSIRO Publishing, Melbourne, pp. 61–279.

    Dawson, J.W. (1859) Polyzoa. Geological Survey of Canada Report of Progress for the Year 1858, 255–257.

    Denisenko, N.V. (2013) Bryozoa. Check-list of species of free-living invertebrates of the Russian Far Eastern seas. Explorations of the Fauna of the Seas, 75 (83), 178–188.

    Dick, M.H. & Grischenko, A.V. (2017) Rocky-intertidal cheilostome bryozoans from the vicinity of the Sesoko Biological Station, west-central Okinawa, Japan. Journal of Natural History, 51, 141–266.

    Dick, M.H. & Ross, J.R.P. (1988) Intertidal Bryozoa (Cheilostomata) of the Kodiak vicinity, Alaska. Center for Pacific Northwest Studies, Western Washington University, Occasional Paper, 23, 1–133.

    Dick, M.H., Tilbrook, K.J. & Mawatari, S.F. (2006) Diversity and taxonomy of rocky-intertidal Bryozoa on the Island of Hawaii, USA. Journal of Natural History, 40, 2197–2257.

    Gontar, V.I. (1980) Bryozoan fauna of the order Cheilostomata of the Kuril Islands coastal water. Synopsis of theses, Candidate in Biological Sciences, Leningrad, 23 pp. [in Russian]

    Gontar, V.I. (1993) Phylum Bryozoa. List of invertebrate species of the continental slope of the Kuril Islands. The Fauna of the Continental Slope of the Kuril Islands. Issledovaniya Fauny Morei, 46, 200–203. [in Russian]

    Gordon, D.P. (2014) Apprehending novel biodiversity—fifteen new genera of Zealandian Bryozoa. Journal of the Marine Biological Association of the United Kingdom, 94, 1597–1628.

    Grischenko, A.V. (1997) Bryozoans (Ctenostomida, Cheilostomida) of the Commander Islands shelf zone. In: Rzhavsky, A.V. (Ed.), Benthic Flora and Fauna of the Shelf Zone of the Commander Islands. Dalnauka Press, Vladivostok, pp. 153–192. [in Russian, with English summary]

    Grischenko, A.V. (2000) History of studies and current state of knowledge of Bryozoan species diversity in the coastal waters of Kamchatka Peninsula. In: Tokranov, A.M. (Ed.), Conservation of Biodiversity of Kamchatka and Coastal Waters. Materials of 1st international scientific conference. Kamchatpress, Petropavlovsk-Kamchatsky, pp. 23–26. [in Russian]

    Grischenko, A.V. (2002) History of investigations and current state of knowledge of Bryozoan species diversity in the Bering Sea. In: Wyse Jackson, P.N. & Spencer Jones, M.E. (Eds.), Annals of Bryozoology: Aspects of the History of Research on Bryozoans. International Bryozoology Association, Dublin, pp. 97–116.

    Grischenko, A.V. (2015) To the cheilostome bryozoan fauna from the continental slope of western Kamchatka. In: Tokranov, A.M. (Ed.), Conservation of Biodiversity of Kamchatka and Coastal Waters. Materials of 16th international scientific conference. Kamchatpress, Petropavlovsk-Kamchatsky, pp. 37–42. [in Russian]

    Grischenko, A.V. (2016) To the cheilostome bryozoan fauna from the continental slope of western Kamchatka (2). In: Tokranov, A.M. (Ed.), Conservation of Biodiversity of Kamchatka and Coastal Waters. Materials of 17th international scientific conference. Kamchatpress, Petropavlovsk-Kamchatsky, pp. 54–58. [in Russian]

    Grischenko, A.V., Gordon, D.P. & Taylor, P.D. (1998) A unique new genus of Cheilostomate Bryozoan with reversed-polarity zooidal budding. Asian Marine Biology, 15, 105–117.

    Grischenko, A.V. & Mawatari, S.F. (2002) Kubaninella: a new genus of Adeonidae (Bryozoa: Cheilostomata) from the Western Kamchatka shelf of the Sea of Okhotsk. In: Wyse Jackson, P.N., Buttler, C.J. & Spencer Jones, M.E. (Eds.), Bryozoan Studies 2001. Balkema, Rotterdam, pp. 125–130.

    Grischenko, A.V. & Mawatari, S.F. (2005) Oshurkovia: a new genus of Umbonulidae (Bryozoa: Cheilostomata) from the northwest Pacific. In: Moyano G., H.I., Cancino, J.M. & Wyse Jackson, P.N. (Eds.), Bryozoan Studies 2004. Balkema, Rotterdam, pp. 99–106.

    Grischenko, A.V., Dick, M.H. & Mawatari, S.F. (2007) Diversity and taxonomy of intertidal Bryozoa (Cheilostomata) at Akkeshi Bay, Hokkaido, Japan. Journal of Natural History, 41, 1047–1161.

    Grischenko, A.V., Mawatari, S.F. & Taylor, P.D. (2000) Systematics and phylogeny of the cheilostome bryozoan Doryporella. Zoologica Scripta, 29, 247–264.

    Grischenko, A.V., Taylor, P.D. & Mawatari, S.F. (2002) A new cheilostome bryozoan with gigantic zooids from the north-west Pacific. Zoological Science, 19, 1279–1289.

    Hassall, A.H. (1842) Remarks on the genus Lepralia of Dr. Johnston, with descriptions of six undescribed species, and notices of two other Zoophytes. Annals and Magazine of Natural History, Series 1, 9 (59), 407–414.

    Izyumova, E.A. (1977) Data on the ecology of Western Kamchatka Shelf Cheilostomata. Abstract of report. 1st All-Russian Marine Biology Conference, Vladivostok, 1977, pp. 59–60. [in Russian]

    Jullien, J. (1883) Bryozoaires. Espèces draguées dans l’Océan Atlantique en 1881. Bulletin de la Société Zoologique de France, 7, 497–529, pls. 13–17.

    Kluge, H. [G.A.] (1906) Ergänzungsbericht über die van der "Olga"-Expedition gesammelten Bryozoen. Wissenschaftliche Meeresuntersuchungen, Neue Folge, 8, 31–55.

    Kluge, H.[G.A.] (1929) Die Bryozoen des sibirschen Eismeers. Raboty Murmanskoi Biologicheskoi Stantsii, 3, 1–33.

    Kluge, G.A. (1953) Class Bryozoa. In: Uschakov, P.V. (Ed.), The Fauna of the Sea of Okhotsk and the Conditions of its Existence. Academy of Sciences of the USSR Press, Leningrad, pp. 169–179. [in Russian]

    Kluge, G.A. (1961) Species list of Bryozoa of the far eastern Seas of the USSR. Issledovaniya Dal'nevostochnih Morei SSSR, 7, 118–143. [in Russian]

    Kluge, G.A. (1962) Bryozoa of the northern seas of the USSR. Opredeliteli po Faune SSSR, 76, 1–584.

    Kubanin, A.A. (1997) Phylum Tentaculata, subphylum Bryozoa. In: Kussakin, O.G., Ivanova, M.B. & Tsurpalo, A.P. (Eds.), A Check-list of Animals, Plants and Fungi from the Intertidal Zone of the Far Eastern Seas of Russia. Dalnauka Press, Vladivostok, pp. 119–125. [in Russian]

    Linnaeus, C. (1767) Systema Naturae. Tom. I. Regnum Animale. Editio duodecima, reformata. Laurentii Salvii, Holmiae, 1327 pp.

    Lorenz, L. von (1886) Bryozoën von Jan Meyen. Die Internationale Polarforschug 1882–83. Die Österreichische Polarstation von Jan Mayen, 3, 83–100.

    Mawatari, S. (1953) Studies on Japanese Ctenostomatous Bryozoa, I. On some species of Carnosa. Publications of the Seto Marine Biological Laboratory, 3, 213–220.

    Mawatari, S. (1956) Cheilostomatous Bryozoa from the Kuril Islands and the neighbouring districts. Pacific Science, 10, 113–135.

    McKinney, F.K. & Raup, D.M. (1982) A turn in the right direction: simulation of erect spiral growth in the bryozoans Archimedes and Bugula. Paleobiology, 8, 101–112.

    McKinney, F.K. & Wass, R.E. (1981) The double helix form of branches and its relationship to polymorph distribution in Spiralaria florea Busk. In: Larwood, G.P. & Nielsen, C. (Eds.), Recent and Fossil Bryozoa. Olsen & Olsen, Fredensborg, pp. 159–167.

    Norman, A.M. (1903) Notes on the natural history of East Finmark, Polyzoa. Annals and Magazine of Natural History, Series 7, 11, 567–598, pl. 13.

    Okada, Y. (1918) Bryozoa from near the mouth of the River Kishika, Kamtschatka. Dobutsugaku Zasshi [Zoological Magazine], 30, 119–123 + 376–384.

    Okada, Y. (1933) On a collection of Bryozoa from the Northern Kuril Expedition. Bulletin of the Biogeographical Society, Tokyo, 4, 213–216.

    Osburn, R.C. (1950) Bryozoa of the Pacific coast of America part 1, Cheilostomata-Anasca. Allan Hancock Pacific Expeditions, 14, 1–269.

    Osburn, R.C. (1952) Bryozoa of the Pacific coast of America part 2, Cheilostomata-Ascophora. Allan Hancock Pacific Expeditions, 14, 271–611.

    Packard, A.S. Jr. (1863) A list of animals dredged near Caribou Island, southern Labrador, during July and August, 1860. Canadian Naturalist and Geologist, 8, 401–429, pl. 1.

    Powell, N.A. (1968) Bryozoa (Polyzoa) of Arctic Canada. Journal of the Fisheries Research Board of Canada, 25, 2269–2320, 14 pls.

    Silén, L. (1942) On spiral growth in the zoaria of certain Bryozoa. Arkiv för Zoologi, 34A, 1–22, 5 pls.

    Smitt, F.A. (1868) Bryozoa marina in regionibus arcticis et borealibus viventia recensuit. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 24, 443–487, pls. 16–20.

    Taylor, P.D. & Grischenko, A.V. (1999) Rodinopora gen. nov. and the taxonomy of fungiform cyclostome bryozoans. Species Diversity, 4, 9–33.

    Watling, L., Guinotte, J., Clark, M.R. & Smith, C.R. (2013) Proposed biogeography of the deep ocean floor. Progress in Oceanography, 111, 91–112.

    Winston, J.E. & Hayward, P.J. (2012) The marine bryozoans of the northeast coast of the United States: Maine to Virginia. Virginia Museum of Natural History Memoir, 11, 1–180.

    Zágoršek, K. & Gordon, D.P. (2013) Late Tortonian bryozoans from Mut Basin, Central Anatolian Plateau, southern Turkey. Acta Paleontologica Polonica, 58, 595–607.