Sertularella polyzonias
Sertularella polyzonias (Linnaeus, 1758) Fig. 36 Sertularia polyzonias Linnaeus, 1758: 813. Sertularella polyzonias .— Segerstedt, 1889: 16, 26.— Jäderholm, 1909: 100, pl. 11, fig. 12.— Rees & Rowe, 1969: 18.— Jägerskiöld, 1971: 64.— Cornelius, 1979: 288. Type locality. England: Kent, north coas...
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2012
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Summary: | Sertularella polyzonias (Linnaeus, 1758) Fig. 36 Sertularia polyzonias Linnaeus, 1758: 813. Sertularella polyzonias .— Segerstedt, 1889: 16, 26.— Jäderholm, 1909: 100, pl. 11, fig. 12.— Rees & Rowe, 1969: 18.— Jägerskiöld, 1971: 64.— Cornelius, 1979: 288. Type locality. England: Kent, north coast (Cornelius 1979: 288). Museum material. Kosterhavet, 58°52.424’N, 11°06.178’E, 35– 11 m, 06.ix.2010, biological dredge, R / V Nereus , several colonies and colony fragments, up to 2.3 cm high, on bryozoans and algae, without gonothecae, ROMIZ B3886. Remarks. Sertularella polyzonias (Linnaeus, 1758) can be somewhat difficult to distinguish from S. gayi (Lamouroux, 1821), which also occurs in northwestern Europe. According to Ramil & Vervoort (1992) and Ramil et al . (1992), S. polyzonias differs from S. gayi in: (1) the form of the hydrocaulus, which is indistinct and monosiphonic instead of distinct and strongly polysiphonic; (2) the type of branching, which is irregular instead of regularly pinnate and in one plane; (3) the shape of the adcauline hydrothecal wall, which is smooth or minimally undulated instead of being more distinctly wavy; (4) the number of cusps flanking the aperture of the gonotheca, with four instead of two. Cornelius (1995b) noted that variations have been noted in these characters, but he retained both species as valid. In addition to morphology, molecular differences have been noted in specimens assigned to the two species (Moura et al . 2008, 2011). FIGURE 37. Sertularella rugosa : part of hydrocaulus with three hydrothecae, ROMIZ B3910. Scale equals 0.5 mm. Also similar to S. polyzonias in the northeastern North Atlantic is Sertularella ellisii (Deshayes & Milne Edwards, 1836), a species differing from S. polyzonias in having three intrathecal cusps within its hydrothecae. These two have recently been shown to be genetically distinct (Moura et al . 2011). Ramil et al . (1992) and Medel & Vervoort (1998) noted that S. ellisii has sometimes been misidentified in European waters as S. gaudichaudi (Lamouroux, 1824), a species from the southwestern South Atlantic. Sertularella polyzonias is abundant at shallow depths in western Sweden, but it becomes scarcer in deeper water (Rees & Rowe 1969). It is also present in Danish waters (Kramp 1935b) and in the Oslofjord, Norway (Christiansen 1972). An extensive synonymy of the species is given by Medel & Vervoort (1998). Reported distribution. West coast of Sweden.—From Säcken Reef in the Kosterfjord to southern Kattegat (Rees & Rowe 1969; Jägerskiöld 1971). Elsewhere.—Often described as “cosmopolitan.” From Spitzbergen and the northern seas of the Russian Federation at least to Morocco in the eastern North Atlantic (Naumov 1960; Cornelius 1995b; Ramil & Vervoort 1992), and from Foxe Basin in the Canadian Arctic and west Greenland to Long Island Sound in the west (Broch 1918; Calder 2004); from the northeastern seas of the Russian Federation to Japan (Hirohito 1995) in the western North Pacific, and from Alaska to Washington state (Fraser 1937) in the east. : Published as part of Calder, Dale R., 2012, On a collection of hydroids (Cnidaria, Hydrozoa, Hydroidolina) from the west coast of Sweden, with a checklist of species from the region 3171, pp. 1-77 in Zootaxa 3171 (1) on pages 36-37, DOI: 10.11646/zootaxa.3171.1.1, http://zenodo.org/record/5247704 : {"references": ["Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. Laurentii Salvii, Holmiae, 823 pp.", "Segerstedt, M. (1889) Bidrag till kannedomen om hydroid-faunan vid Sveriges vestkust. Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar, 14, Afdelning 4, 4, 1 - 28.", "Jaderholm, E. (1909) Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). IV. Hydroiden. Kungliga Svenska Vetenskapsakademiens Handlingar, ny foljd, 45 (1), 1 - 124.", "Rees, W. J. & Rowe, M. (1969) Hydroids of the Swedish west coast. Acta Regiae Societatis Scientiarum et Litterarum Gothobergensis, Zoologica, 3: 1 - 23.", "Jagerskiold, L. A. (1971) A survey of the marine benthonic macro-fauna along the Swedish west coast 1921 - 1938. Acta Regiae Societatis Scientiarum et Litterarum Gothobergensis, Zoologica, 6, 1 - 146.", "Cornelius, P. F. S. (1979) A revision of the species of Sertulariidae (Coelenterata: Hydroida) recorded from Britain and nearby seas. Bulletin of the British Museum (Natural History), Zoology, 34, 243 - 321.", "Lamouroux, J. V. F. (1821) Exposition methodique des genres de l'ordre des polypiers, avec leur description et celle des principales especes, figurees dans 84 planches; les 63 premieres appartenant a l'histoire naturelle des zoophytes d'Ellis et Solander. Agasse, Paris, 115 pp.", "Ramil, F. & Vervoort, W. (1992) Report on the Hydroida collected by the \" BALGIM \" expedition in and around the Strait of Gibraltar. Zoologische Verhandelingen, 277, 1 - 262.", "Cornelius, P. F. S. (1995 b) North-west European thecate hydroids and their medusae. Part 2. Sertulariidae to Campanulariidae. Synopses of the British Fauna, n. s., 50, 386 pp.", "Moura, C. J., Harris, D. J., Cunha, M. R. & Rogers, A. D. (2008) DNA barcoding reveals cyptic diversity in marine hydroids (Cnidaria, Hydrozoa) from coastal and deep-sea environments. Zoologica Scripta, 37, 93 - 108.", "Moura, C. J., Cunha, M. R., Porteiro, F. M. & Rogers, A. D. (2011) The use of the DNA barcode gene 16 S mRNA for the clarification of taxonomic problems within the family Sertulariidae (Cnidaria, Hydrozoa). Zoologica Scripta, 40, 520 - 537.", "Deshayes, G. P. & Milne Edwards, H. (1836) Histoire naturelle des animaux sans vertebres, par J. B. P. A. de Lamarck. Deuxieme Edition. Tome 2 me. J. B. Bailliere, Paris, 683 pp.", "Medel, M. D. & Vervoort, W. (1998) Atlantic Thyroscyphidae and Sertulariidae (Hydrozoa, Cnidaria) collected during the CANCAP and Mauritania-II expeditions of the National Museum of Natural History, Leiden, The Netherlands. Zoologische Verhandelingen, 320, 1 - 85.", "Lamouroux, J. V. F. (1824) Description des polypiers flexibles. In: Quoy, J. R. C. & Gaimard, J. P. (Eds.), Zoologie. Voyage autour du monde, entrepris par ordre du Roi, execute sur les corvettes de S. M. l'Uranie et la Physicienne, pendant les annees 1817, 1818, 1819 et 1820; par M. Louis de Freycinet. Pillet Aine, Paris, 603 - 643.", "Kramp, P. L. (1935 b) Polypdyr (Coelenterata) I. Ferskvandspolypper og goplepolypper. Danmarks Fauna, 41, 1 - 207.", "Christiansen, B. O. (1972) The hydroid fauna of the Oslo Fiord in Norway. Norwegian Journal of Zoology, 20, 279 - 310.", "Naumov, D. V. (1960) Gidroidy i gidromeduzy morskikh, solonovatovodnykh i presnovodnykh basseinov SSSR. Akademiya Nauk SSSR, Opredeliteli po Faune SSSR, 70, 1 - 626.", "Broch, H. (1918) Hydroida (Part II.). The Danish Ingolf Expedition, 5 (7), 205 pp.", "Calder, D. R. (2004) Subtidal hydroids (Cnidaria) of Northumberland Strait, Atlantic Canada, with observations on their life cycles and distributions. Canadian Field-Naturalist, 117, 555 - 564. (Although dated 2003, this article did not appear until 2004).", "Hirohito, The Showa Emperor (1995) The hydroids of Sagami Bay. Part II. Thecata. Biological Laboratory, Imperial House- hold, Tokyo, Japan, 355 pp.", "Fraser, C. M. (1937) Hydroids of the Pacific coast of Canada and the United States. University of Toronto Press, Toronto, 207 pp."]} |
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