Abstract
During a study of fauna associated with a shallow-water Zostera (Zosterella) noltei bed from the southern part of the Romanian Black Sea coast, among the identified material collected in 2015, a syllid polychaete belonging to the subfamily Exogoninae, Sphaerosyllis taylori Perkins, 1981, represents a new record for the Black Sea. Re-examination of available specimens previously identified as Sphaerosyllis bulbosa Southern, 1914 revealed that they belong to an unknown species, described herein as Sphaerosyllis pontica sp. nov. The new species is characterized by the median antenna inserted more posteriorly than the lateral antennae, dorsal cirri with bulbous bases and very short tips, shorter than the parapodial lobes, dorsal cirri absent on chaetiger 2, parapodial glands with fibrillar material from chaetiger 4 onwards, compound chaetae with short blades and smooth shafts, anterior parapodia with two aciculae each, one straight and one with bent tip. Descriptions of both species are provided together with a key to all Sphaerosyllis species known from the Black Sea.
References
Abd-Elnaby, F.A. & San Martín, G. (2010) Eusyllinae, Anoplosyllinae, and Exogoninae (Polychaeta: Syllidae) for the Mediterranean coasts of Egypt, together with the description of one new species. Life Science Journal, 7 (4), 132–139.
Álvarez, P. & San Martín, G. (2009) A new species of Sphaerosyllis (Annelida: Polychaeta: Syllidae) from Cuba, with a list of syllids from the Guanahacabibes Biosphere Reserve (Cuba). Journal of the Marine Biological Association of the United Kingdom, 89 (7), 1427–1435.
https://doi.org/10.1017/S0025315409000654Bobretzky, N. (1881) Supplement á la faune des Annélides de la mer Noire (avec pl. VI, VII). Zapiski Kievskogo Obshchestva Estestvoispytatelej, 6 (2), 183–212. [in Russian]
Böggemann, M. & Westheide, W. (2004) Interstitial Syllidae (Annelida: Polychaeta) from Mahé (Seychelles). Journal of Natural History, 38 (3), 403–446.
https://doi.org/10.1080/0022293021000033229Çinar, M.E., Dağli, E. & Açik, S. (2011) Annelids (Polychaeta and Oligochaeta) from the Sea of Marmara, with descriptions of five new species. Journal of Natural History, 45 (33–34), 2105–2143.
https://doi.org/10.1080/00222933.2011.582966Çinar, M.E., Dağli, E. & Kurt Şahin, G. (2014) Checklist of Annelida from the coasts of Turkey. Turkish Journal of Zoology, 38 (6), 734–764.
https://doi.org/10.3906/zoo-1405-72Çinar, M.E. & Ergen, Z. (2002) Faunistic analysis of Syllidae (Annelida: Polychaeta) from the Aegean Sea. Cahiers de Biologie Marine, 43 (2), 171–178.
Çinar, M.E., Ergen, Z. & Benli, H.A. (2003) Autolytinae and Exogoninae (Polychaeta: Syllidae) from northern Cyprus (Eastern Mediterranean Sea) with a checklist of species reported from the Levant Sea. Bulletin of Marine Science, 72 (3), 741–767.
Claparède, É. (1863) Beobachtungen über Anatomie und Entwicklungsgeschichte wirbelloser Thiere an der Küste von Normandie angestellt. Wilhelm Engelmann, Leipzig, 120 pp.
https://doi.org/10.5962/bhl.title.10030
Claparède, É. (1868) Les Annélides Chétopodes du Golfe de Naples. Mémoires de la Société de Physique et d’Histoire Naturelle de Genève, 19 (2), 313–584, pls. I–XVI.
del Pilar Ruso, Y. & San Martín, G. (2012) Description of a new species of Sphaerosyllis Claparède, 1863 (Polychaeta: Syllidae: Exogoninae) from the Alicante coast (W Mediterranean) and first reports of two other species of Syllidae for the Mediterranean Sea and the Iberian Peninsula. Mediterranean Marine Science, 13 (2), 187–197.
https://doi.org/10.12681/mms.298
Ding, Z. & Westheide, W. (2008) Interstitial Exogoninae from the Chinese coast. Senckenbergiana biologica, 88, 125–159.
Dumitrescu, E. (1957) Contribuții la studiul polichetelor din Marea Neagră, litoralul romînesc. Buletin Științific. Secția de Biologie și Științe Agricole, Seria Zoologie, 9 (2), 119–130.
Dumitrescu, E. (1960) Contributions la connaissance des Polychètes de la Mer Noire, spécialement des eaux prébosphoriques. Travaux du Muséum d’Histoire Naturelle «Grigore Antipa», 2, 69–85.
Faulwetter, S., Chatzigeorgiou, G., Galil, B.S., Nicolaidou, A. & Arvanitidis, C. (2011) Sphaerosyllis levantina sp. n. (Annelida) from the eastern Mediterranean, with notes on character variation in Sphaerosyllis hystrix Claparède, 1863. ZooKeys, 150, 327–345.
https://doi.org/10.3897/zookeys.150.1877
Gambi, M.C., Conti, G. & Bremec, C.S. (1998) Polychaete distribution, diversity and seasonality related to seagrass cover in shallow soft bottoms of the Tyrrhenian Sea (Italy). Scientia Marina, 62 (1–2), 1–17.
Kiseleva, M.I. (2004) Polychaetes (Polychaeta) of the Black and Azov Seas. Kola Science Centre, Murmansk Marine Biological Institute, Russian Academy of Science, Apatity, 409 pp. [in Russian]
Kurt Şahin, G. & Çinar, M.E. (2012) A check-list of polychaete species (Annelida: Polychaeta) from the Black Sea. Journal of the Black Sea/Mediterranean Environment, 18 (1), 10–48.
Kurt Şahin, G., Dağli, E. & Sezgin, M. (2017) Spatial and temporal variations of soft bottom polychaetes of Sinop Peninsula (southern Black Sea) with new records. Turkish Journal of Zoology, 40 (1), 89–101.
https://doi.org/10.3906/zoo-1510-15
Langerhans, P. (1879) Die Würmfauna von Madeira. Zeitschrift für Wissenschaftliche Zoologie, 32 (4), 513–592, pls. XXXI–XXXIII.
Liñero, I. & Díaz, O. (2011) Syllidae (Annelida, Polychaeta) from the Caribbean coast of Venezuela. ZooKeys, 117, 1–28.
https://doi.org/10.3897/zookeys.117.858
Marinov, T. (1959) Contribution to the studies of the polychaetous fauna off the western Black Sea coast. Izvestia na Zoologicheskia Institut Bŭlgarskata Akademija na Naukite, 8, 83–104. [in Bulgarian]
Musco, L., Çinar, M.E. & Giangrande, A. (2005) A new species of Sphaerosyllis (Polychaeta, Syllidae, Exogoninae) from the coasts of Italy and Cyprus (eastern Mediterranean Sea). Italian Journal of Zoology, 72 (2), 161–166.
https://doi.org/10.1080/11250000509356666
Mutlu, E., Çinar, M.E. & Ergen, M.B. (2010) Distribution of soft-bottom polychaetes of the Levantine coast of Turkey, eastern Mediterranean Sea. Journal of Marine Systems, 79 (1–2), 23–35.
https://doi.org/10.1016/j.jmarsys.2009.06.003
Nogueira, J.M., San Martín, G. & Amaral, A.C.Z. (2001) Description of five new species of Exogoninae (Polychaeta: Syllidae) associated with the stony coral Mussismilia hispida (Verrill, 1868) in Saõ Paulo state, Brazil. Journal of Natural History, 35 (12), 1773–1794.
https://doi.org/10.1080/00222930152667096
Núñez, J., Martínez, A. & Brito, M.C. (2009) A new species of Sphaerosyllis Claparède, 1863 (Polychaeta: Syllidae: Exogoninae) from the Atlantida Tunnel, Lanzarote, Canary Islands. Marine Biodiversity, 39 (3), 209–214.
https://doi.org/10.1007/s12526-009-0026-3
Olivier, F., Grant, C., San Martín, G., Archambault, P. & McKindsey, C.W. (2012) Syllidae (Annelida: Polychaeta: Phyllodocida) from the Chausey Archipelago (English Channel, France), with a description of two new species of the Exogoninae Prosphaerosyllis. Marine Biodiversity, 42 (1), 55–63.
https://doi.org/10.1007/s12526-011-0092-1
Perkins, T.H. (1981) Syllidae (Polychaeta), principally from Florida, with descriptions of a new genus and twenty-one new species. Proceedings of the Biological Society of Washington, 93 (4), 1080–1172.
Ramos, J., San Martín, G. & Sikorski, A. (2010) Syllidae (Polychaeta) from the Arctic and sub-Arctic regions. Journal of the Marine Biological Association of the United Kingdom, 90 (5), 1041–1050.
https://doi.org/10.1017/S0025315409991469
Riser, N.W. (1991) An evaluation of taxonomic characters in the genus Sphaerosyllis (Polychaeta: Syllidae). In: Petersen, M.E. & Kirkegard, J. (Eds.), Systematics, Biology and Morphology of World Polychaeta, Proceedings of the 2nd International Polychaete Conference Copenhagen, 1986, Ophelia Supplement, 5, pp. 209–217.
Ruíz-Ramírez, J.D. & Salazar-Vallejo S.I. (2001) Exogoninae (Polychaeta: Syllidae) del Caribe mexicano con una clave para las especies del Gran Caribe. Revista de Biología Tropical, 49 (1), 117–140.
Rullier, F. (1963) Les annélides polychètes du Bosphore, de la Mer de Marmara et de la Mer Noire, en relation avec celles de la Méditerranée. Rapports et Procès-verbaux des Réunions de la Commission Internationale pour l’Exploration Scientifique de la Mer Méditerranée, 17 (2), 161–260.
Russel, D.E. (1991) Exogoninae (Polychaeta: Syllidae) from the Belizean barrier reef with a key to species of Sphaerosyllis. Journal of Natural History, 25 (1), 49–74.
https://doi.org/10.1080/00222939100770061
Salazar-Vallejo, S.I. (1996) Lista de especies y bibliografía de poliquetos (Polychaeta) del Gran Caribe. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, 67 (1), 11–50.
San Martín, G. (1984a) Descripción de una nueva especie y revisión del género Sphaerosyllis (Polychaeta: Syllidae). Cahiers de Biologie Marine, 25 (4), 375–391.
San Martín, G. (1984b) Estudio biogeográfico, faunístico y sistemático de los Poliquetos de la familia Sílidos (Syllidae: Polychaeta) en Baleares. Publicaciones de la Universidad Complutense de Madrid, Colección Tesis Doctorales No. 187, 1–581.
San Martín, G. (1991) Sphaerosyllis and Parapionosyllis (Exogoninae, Syllidae, Polychaeta) from Cuba, Florida and the Gulf of Mexico. In: Petersen, M.E. & Kirkegard, J. (Eds.), Systematics, Biology and Morphology of World Polychaeta, Proceedings of the 2nd International Polychaete Conference Copenhagen, 1986, Ophelia Supplement, 5, 231–238.
San Martín, G. (2003) Annelida, Polychaeta II: Syllidae. In: Ramos, M.A. (Ed.), Fauna Iberica, Vol. 21. Museo Nacional de Ciencias Naturales, CSIC, Madrid, 554 pp.
San Martín, G. (2005) Exogoninae (Polychaeta: Syllidae) from Australia, with the description of a new genus and twenty-two new species. Records of the Australian Museum, 57 (1), 39–152.
https://doi.org/10.3853/j.0067-1975.57.2005.1438San Martín, G. & Aguado, M.T. (2014) Family Syllidae Grube, 1850. In: Westheide, W. & Purschke, G. (Eds.), Handbook of Zoology Online, Annelida: Polychaetes. De Gruyter, Berlin, pp. 1–52.
San Martín, G. & López, E. (2002) New species of Autolytus Grube, 1850, Paraprocerastea San Martín & Alós, 1989, and Sphaerosyllis Claparède, 1863 (Syllidae, Polychaeta) from the Iberian Peninsula. Sarsia, 87 (2), 135–143.
https://doi.org/10.1080/003648202320205210
Somaschini, A. & San Martín, G. (1994) Description of two new species of Sphaerosyllis (Polychaeta: Syllidae: Exogoninae) and first report of Sphaerosyllis glandulata Perkins, 1981, for the Mediterranean Sea. Cahiers de Biologie Marine, 35 (3), 357–367.
Southern, R. (1914) Clare Island Survey. Archiannelida and Polychaeta. Proceedings of the Royal Irish Academy, 31 (47), 1–160.
Uebelacker, J.M. (1984) Family Syllidae Grube, 1850. In: Uebelacker, J.M. & Johnson, P.G. (Eds.), Taxonomic guide to the polychaetes of the Northern Gulf of Mexico. Vol. 4, Chapter 30. Final report to the Minerals Management Service, contract 14-12-001-29091. Barry A. Vittor & Associates, Inc., Mobile, Alabama, pp. 30.1–30.151.
Vinogradov, K.A. (1949) On the fauna of bristle worms (Polychaeta) of the Black Sea. Trudy Karadagskoj Biolgicheskoj Stantsii, 8, 1–84. [in Russian]