Sertularia tongensis Stechow 1919
Sertularia tongensis (Stechow, 1919) (fig. 5 H–M, table 2) Sertularella tongensis Stechow, 1919: 89, fig. F 1, G 1.― Vervoort & Vasseur, 1977: 52, fig. 23. not Sertularia tongensis Stechow, 1919: 101, fig. N 1 (= Sertularia ephemera nom. nov. ). Sertularia thecocarpa Jarvis, 1922: 341...
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Zenodo
2010
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Online Access: | https://dx.doi.org/10.5281/zenodo.5630163 https://zenodo.org/record/5630163 |
Summary: | Sertularia tongensis (Stechow, 1919) (fig. 5 H–M, table 2) Sertularella tongensis Stechow, 1919: 89, fig. F 1, G 1.― Vervoort & Vasseur, 1977: 52, fig. 23. not Sertularia tongensis Stechow, 1919: 101, fig. N 1 (= Sertularia ephemera nom. nov. ). Sertularia thecocarpa Jarvis, 1922: 341, pl. 24 fig. 10, syn. nov. ― Millard & Bouillon, 1973: 71, fig. 9 C–D.― Morri et al ., 2009: 54, figs 2 E–F, 4 A–D. Sertularella minuscula Billard, 1924: 648, fig. 2 F, syn. nov. ― Billard, 1925: 139, fig. 9.― Leloup, 1932: 161, figs 26, 27.― Leloup, 1935: 45.― Fraser, 1944: 266, pl. 57 fig. 254.― Pennycuik, 1959: 195, pl. 6 fig. 2.―Van Gemerden- Hoogeveen, 1965: 34, figs 8–12.―Hirohito, 1974: 18, fig. 7.― Cooke, 1975: 98.― Gibbons & Ryland, 1989: 417, fig. 33.― Watson, 2002: 343, fig. 3. Sertularella parvula Mammen, 1965: 37, fig. 69, syn. nov. (not Calamphora parvula Allman, 1888). Sertularia stechowi Hirohito, 1995: 215, figs 72 D–F, 73 A–C, pl. 12 fig. C, syn. nov. Sertularella cumberlandica ― Stechow, 1913: 140, fig. 115 [not Sertularella (= Symplectoscyphus ) cumberlandica Jäderholm, 1905]. Symplectoscyphus cumberlandicus ― Yamada, 1959: 60 [not Symplectoscyphus cumberlandicus (Jäderholm, 1905)]. Material examined . Stn. 9 : 21.11.2009, 21 m—several sterile stems to 7 mm high, on concretions and stem of Eudendrium sp. (MNHN-IK. 2009 - 818). Stn. 10 : 19.11.2009, 17 m—several stems to 7 mm high, of which one bears a gonotheca and another two side branches, on sponge; 0 2.12.2009, 15– 20 m—several sterile stems, to 9 mm high, on sponge and Dictyota sp. (MHNG-INVE- 68724) Stn. 12 : 30.11.2009, 12– 15 m—several sterile stems, to 6 mm high, on sponge and worm tube. contiuned. Remarks . This remarkable hydroid is characterized by: 1) its alternate hydrothecae (fig. 5 H), instead of (sub)opposite as in the majority of species assigned to Sertularia Linnaeus, 1758; 2) a hydrothecal aperture closed by two peculiar opercular flaps, both pleated along a median line, giving the impression of a fourflapped operculum when the hydrotheca is seen apically (fig. 5 K); 3) its gonothecae (fig. 5 L) and, when present, side branches (fig. 5 I) arising from within the stem hydrothecae. In spite of its peculiar morphology, four additional nominal species from the Indo-Pacific have been erected for the present hydroid, viz . Sertularia thecocarpa Jarvis, 1922, Sertularella minuscula Billard, 1924, Sertularella parvula Mammen, 1965, and Sertularia stechowi Hirohito, 1995. All the available descriptions and illustrations referring to them leave no doubt about their conspecificity with Stechow’s (1919) species. Comparison of measurements from various sources (table 2) show that all fall into a common range of variation. The length of both abcauline and free adcauline sides of the hydrotheca appears highly variable and is in relation to whether the renovations (sometimes numerous, though often inconspicuous) have been included when measuring the size of the thecae. The differences in the size of the gonotheca may be due to different stages of maturation and/or to possible sexual dimorphism, though their shape is substantially the same in all the available accounts. Two types of nematocysts occur in the present material (undischarged capsules): microbasic mastigophores (6.1–6.4 × 1.8 –2.0 µm), and larger, unidentified capsules (10.8–11.4 × 3.1–3.3 µm). Since Sertularella tongenis Stechow, 1919 clearly belongs to Sertularia Linnaeus, 1758 (see SEM images in Morri et al . 2009), it appears that this species and Sertularia tongensis Stechow, 1919 become secondary homonyms. As Sertularella tongensis was described on p. 89, and Sertularia tongensis on p. 101 of the same publication (Stechow 1919), I consider the former specific name as the senior homonym (ICZN Art. 24.2, Principle of the First Reviser), and I propose the new name Sertularia ephemera nom. nov. for the latter (ICZN Art. 60). Better knowledge of the taxonomical status of Sertularia ephemera is actually needed, especially with respect to its relationship with S. maldivensis (Borradaile, 1905). Caribbean records . Bonaire (Leloup 1935, Van Gemerden-Hogeveen 1965), Farallón Centinela (Venezuela) (Van Gemerden-Hoogeveen 1965). World distribution . Kingdom of Tonga (Stechow 1919), Chagos Archipelago (Jarvis 1922), Indonesia (Billard 1924, 1925), Gulf of Manaar (Leloup 1932), Queensland (Australia) (Pennycuik 1959, Watson 2002), southern India (Mammen 1965), Seychelles (Millard & Bouillon 1973), Bonin Islands (Hirohito 1974), Marshall Islands (Cooke 1975), Moorea (Vervoort & Vasseur 1977), Fiji (Gibbons & Ryland 1989), Japan (Stechow 1913, Yamada 1959, Hirohito 1995), Levant Sea (Morri et al . 2009). : Published as part of Galea, Horia R., 2010, Additional shallow-water thecate hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles, pp. 1-40 in Zootaxa 2570 on pages 18-20, DOI: 10.5281/zenodo.197380 : {"references": ["Stechow, E. (1919) Zur Kenntnis des Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete. Zoologische Jahrbucher, 42 (1), 1 - 172.", "Vervoort, W. & Vasseur, P. (1977) Hydroids from French Polynesia with notes on distribution and ecology. Zoologische Verhandelingen, Leiden, 159, 1 - 98.", "Jarvis, F. E. (1922) The hydroids from the Chagos, Seychelles and other islands and from the coasts of British East Africa and Zanzibar. In: Reports of the Percy Sladen Trust Expedition to the Indian Ocean in 1905, under the leadership of Mr J. Stanley Gardiner, M. A. Transactions of the Linnean Society of London, Zoology (2), 18 (1), 331 - 360.", "Millard, N. A. H. & Bouillon, J. (1973) Hydroids from the Seychelles (Coelenterata). Annales du Museum Royal de l'Afrique Centrale, 206, 1 - 105.", "Morri, C., Puce, S., Bianchi, C. N., Bitar, G., Zibrowius, H. & Bavestrello, G. (2009) Hydroids (Cnidaria: Hydrozoa) from the Levant Sea (mainly Lebanon), with emphasis on alien species. Journal of the Marine Biological Association of the United Kingdon, 89 (1), 49 - 62.", "Billard, A. (1924) Note sur quelques especes la plupart nouvelles de Synthecides et de Sertularides du Siboga. Bulletin de la Societe Zoologique de France, 49, 646 - 652.", "Billard, A. (1925) Les hydroides de l'expedition du Siboga. II. Syntheciide et Sertulariidae. Siboga-Expeditie, 7 b, 117 - 232.", "Leloup, E. (1932) Une collection d'hydropolypes appartenant a l'Indian Museum de Calcutta. Records of the Indian Museum, 34 (2), 131 - 170.", "Leloup, E. (1935) Hydraires calyptoblastiques des Indes Occidentales. Memoires du Museum royal d'Histoire naturelle de Belgique, (2) 2, 1 - 73.", "Fraser, C. M. (1944) Hydroids of the Atlantic coast of North America. The University of Toronto Press, Toronto, 451 pp.", "* Pennycuik, P. R. (1959) Faunistic records from Queensland. Part V. Marine and brackish water hydroids. Papers of the Department of Zoology, University of Queensland, 1, 141 - 210.", "Van Gemerden-Hoogeveen, G. C. H. (1965) Hydroids of the Caribbean: Sertulariidae, Plumulariidae and Aglaopheniidae. Studies on the fauna of Curacao and other Caribbean Islands, 84, 1 - 87.", "* Cooke, W. J. (1975) Shallow water hydroids from Enewetak Atoll, Marshall Islands. Micronesica, 11, 85 - 108.", "Gibbons, M. J. & Ryland, J. S. (1989) Intertidal and shallow water hydroids from Fiji. I. Athecata to Sertulariidae. Memoirs of the Queensland Museum, 27 (2), 377 - 432.", "Watson, J. E. (2002) Hydroids (Cnidaria: Hydrozoa) from southern Queensland. Memoirs of the Museum of Victoria, 59 (2), 337 - 354.", "Mammen, T. A. (1965) On a collection of hydroids from South India. II. Suborder Thecata. Journal of the Marine Biological Association of India, 7 (1), 1 - 57.", "Allman, G. J. (1888) Report on the Hydroida dredged by H. M. S. Challenger during the years 1873 - 76. Part II. - The Tubularinae, Corymorphinae, Campanularinae, Sertularinae and Thalamophora. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the year 1873 - 76, Zoology, 23 (70), 1 - 90.", "Stechow, E. (1913) Hydroidpolypen der japanischen Ostkuste. II. Teil: Campanularidae, Halecidae, Lafoeidae, Campanulinidae und Sertularidae, nebst Erganzungen zu den Athecata und Plumularidae. In: F. Doflein, Beitrage zur Naturgeschichte Ostasiens. Abhandlungen der Koniglich Bayrischen Akademie der Wissenschaften, Supplementband zu den Abhandlungen der Mathematisch-naturwissenschaftlichen Klasse, 3 (2), 1 - 162.", "Jaderholm, E. (1905) Hydroiden aus antarktischen und subantarktischen Meeren gesammelt von der schwedischen Sudpolar-Expedition. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar-Expedition 1901 - 1903, 5 (8), 1 - 41.", "* Yamada, M. (1959) Hydroid fauna of Japanese and its adjacent waters. Publications from the Akkeshi Marine Biological Station, 9, 1 - 101.", "Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. L. Salvii, Holmiae, Stockholm, 1 - 823.", "Borradaile, L. A. (1905) Hydroids. In: Gardiner, J. S. (Ed.) Fauna and geography of the Maldive and Laccadive Archipelagoes. Cambridge University Press, London, 2 (4), 836 - 845."]} |
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