Sigambra sundarbanensis sp. nov. (Annelida, Pilargidae) from the Indian sector of Sundarbans Estuarine System, with remarks on parapodial glands
Abstract
A new pilargid species, Sigambra sundarbanensis sp. nov., is described from the rivers Matla and Thakuran, in the central Indian sector of the Sundarbans Estuarine System. This species is characterized by several characters such as the starting position of the notopodial hooks, the length of the median antenna and the variation in number of the neuropodial chaetae. These characters distinguish the new species from its congeners. Some parapodial glands have been found in individuals of this species. The new species closely resembles Sigambra parva (Day, 1963). Additionally, an updated key of genus Sigambra is provided, along with a table indicating their morphological variations and a global map showing their type localities.
References
Achari G.P.K. 1975. Studies on new or little known polychaetes from the Indian Seas, 4. On a new record of Sigambra tentaculata (Treadwell) (Pilargidae), from the southwest coast of India along with observations on its early larval stages. Journal of the Marine Biological Association of India 17 (2): 238–241.
Böggemann M. 2009. Polychaetes (Annelida) of the abyssal SE Atlantic. Organisms, Diversity & Evolution 9: 251–428.
Buchanan J.B. 1984. Sediment analysis. In: Holme N.A. & McIntyre A.D. (eds) Methods for the Study of Marine Benthos: 41–65. Blackwell Scientific Publications, Oxford.
Dahlgren T.G., Lundberg J., Pleijel F. & Sundber P. 2000. Morphological and molecular evidence of the phylogeny of nereidiform polychaetes (Annelida). Journal of Zoological Systematics and Evolutionary Research 38: 249–253. https://doi.org/10.1046/j.1439-0469.2000.384150.x
Day J.H. 1963. The polychaete fauna of South Africa, 8. New species and records from grab samples and dredgings. Bulletin of the British Museum (Natural History), Zoology 10 (7): 381–445. https://doi.org/10.5962/bhl.part.20530
Day J.H. 1967. A monograph on the polychaetes of Southern Africa. Part 1: Errantia, Part 2: Sedentaria. British Museum (Natural History), London, Publications 656: 1–878. https://doi.org/10.5962/bhl.title.8596
Dean H.K. 1998.The Pilargidae (Annelida: Polychaeta) of the Pacific coast of Costa Rica. Revista de Biologia Tropical 46 (6): 47–62. Available from https://revistas.ucr.ac.cr/index.php/rbt/article/view/29633 [accessed 15 Mar. 2021].
El Wakeel S.K. & Riley J.P. 1957. The determination of organic carbon in marine muds. ICES Journal of Marine Science 22 (2): 180–183. https://doi.org/10.1093/icesjms/22.2.180
Fauchald K. 1972. Benthic polychaetous annelids from deep waters off western Mexico and adjacent areas in the Eastern Pacific Ocean. Allan Hancock Monograph in Marine Biology 7: 1–575. Available from https://repository.si.edu/handle/10088/6207 [accessed 15 Mar. 2021].
Fauvel P. 1923. Polychètes errantes. Faune de France 5: 217–225.
Gagaev S.Y. 2008. Sigambra healyae n. sp., a new species of polychaete (Polychaeta: Pilargidae) from the Canadian Basin of the Arctic Ocean. Russian Journal of Marine Biology 34 (1): 73–75. https://doi.org/10.1134/S1063074008010100
Gouveneaux A. 2016. Bioluminescence of Tomopteridae species (Annelida): multidisciplinary approach. PhD Thesis, Université Catholique de Louvain, Belgium. Available from http://hdl.handle.net/2078.1/176773 [accessed 15 Mar. 2021].
Gouveneaux A., Flood P.R., Erichsen E.S., Olsson C., Lindström J. & Mallefet J. 2017. Morphology and fluorescence of the parapodial light glands in Tomopteris helgolandica and allies (Phyllodocida: Tomopteridae). Zoologischer Anzeiger 268: 112–125. https://doi.org/10.1016/j.jcz.2016.08.002
Grasshoff K., Kremling K. & Ehrhardt M. 1999. Methods of Seawater Analysis (3rd ed.). Verlag Chemie, Weinheim, Germany. https://doi.org/10.1002/9783527613984
Hartman O. 1947. Polychaetous Annelids, Part 8. Pilargidae. Allan Hancock Pacific Expeditions 10: 483–523.
Jumars P.A., Dorgan K.M. & Lindsay S.M. 2015. Diet of worms emended: an update of polychaete feeding guilds. Annual Review of Marine Science 7 (1): 497–520. https://doi.org/10.1146/annurev-marine-010814-020007
Licher F. & Westheide W. 1994. The phylogenetic position of the Pilargidae with a cladistic analysis of the taxon - facts and ideas. In: Dauvin J.C., Laubier L. & Reish D.J. (eds) Actes de la 4eme Conférence internationale des Polychètes. Mémoires du Museum national d’histoire naturelle 162: 223–235.
Licher F. & Westheide W. 1997. Review of the genus Sigambra (Polychaeta: Hesionidae), redescription of S. bassi (Hartman 1947) and descriptions of two new species from Thailand and China. Steenstrupia 23: 1–20.
Mandal S. & Deb S. 2018. Ancistrosyllis matlaensis n. sp. (Polychaeta: Pilargidae) from the Sundarban Estuarine System, India. Zootaxa 4531 (3): 419–429. https://doi.org/10.11646/zootaxa.4531.3.6
Manna S., Chaudhuri K., Bhattacharyya S. & Bhattacharyya M. 2010. Dynamics of Sundarban estuarine ecosystem: eutrophication induced threat to mangroves. Saline System 6 (8): 1–16. https://doi.org/10.1186/1746-1448-6-8
Misra A. 1995. Polychaetes. In: Director, Zoological Survey of India (ed.) Hugli Matla Estuary. Zoological Survey of India, Calcutta, Estuarine Ecosystem Series 2: 93–155.
Moreira J. & Parapar J. 2002. Redescription of Sigambra tentaculata and re-establishment of S. parva (Polychaeta, Pilargidae) based upon type material. Cahiers de Biologie marine 43: 99–109.
Muir A.I. & Bamber R.N. 2008. New polychaete (Annelida) records and a new species from Hong
Kong: the families Polynoidae, Sigalionidae, Chrysopetalidae, Pilargiidae, Nereididae, Opheliidae, Ampharetidae and Terebellidae. Journal of Natural History 42 (9–12): 797–814. https://doi.org/10.1080/00222930701850455
Müller F. 1858. Einiges über die Annelidenfauna der Insel Santa Catharina an der brasilianischen Küste. Archiv für Naturgeschichte, Berlin 24: 211–220. Available from https://biodiversitylibrary.org/page/7460059 [accessed 15 Mar. 2021].
Nishi E., Tanaka K., Fujioka Y. & Sato, M. 2007. Reinstatement of Sigambra hanaokai (Kitamori, 1960) (Polychaeta, Pilargidae), with an overview of the literature on the genus. Zootaxa 1653 (1): 57–68. https://doi.org/10.11646/zootaxa.1653.1.4
Paterson G.L.J. & Glover A.G. 2000. A new species of Sigambra (Polychaeta, Pilargidae) from the abyssal plains of the NE Atlantic. Bulletin of the Natural History Museum, London (Zoology) 66: 167–170. Available from https://biodiversitylibrary.org/page/41005372 [accessed 15 Mar. 2021].
Pettibone M.H. 1966. Revision of the Pilargidae (Annelida: Polychaeta), including descriptions of new species, and redescription of the pelagic Podarmus ploa Chamberlin (Polynoidae). Proceedings of the United States National Museum 118: 155–207. https://doi.org/10.5479/si.00963801.118-3525.155
Pleijel F. & Dahlgren T.G. 1998. Position and delineation of Chrysopetalidae and Hesionidae (Annelida, Polychaeta, Phyllodocida). Cladistics 14: 129–150. https://doi.org/10.1111/j.1096-0031.1998.tb00327.x
Raha A., Das S., Banerjee K. & Mitra A. 2012. Climate change impacts on Indian Sunderbans: a time series analysis (1924–2008). Biodiversity Conservation 2: 1289–1307. https://doi.org/10.1007/s10531-012-0260-z
Salazar-Vallejo S.I. 1986. Pilargidae (Annelida: Polychaeta) de México: lista de especies, nueva especie y biogeografía. Cahiers de Biologie marine 27: 193–209.
Salazar-Vallejo S.I. & Rizzo A.E. 2009. Pilargidae de Saint-Joseph, 1899. In: de León-González J.A., Bastida-Zavala J.R., Carrera-Parra L.F., García-Garza M.E., Peña-Rivera A., Salazar-Vallejo S.I. & Solís-Weiss V. (eds) Poliquetos (Annelida: Polychaeta) de México y América Tropical. Universidad Autónoma de Nuevo León, Monterrey.
Salazar-Vallejo S.I., Rizzo A.E., León-González J.Á. & Brauko K.M. 2019. Four new Caribbean Sigambra species (Annelida, Pilargidae), and clarifications of three other Sigambra species. ZooKeys 893: 21–50. https://doi.org/10.3897/zookeys.893.39594
Southern R. 1921. Polychaeta of the Chilka Lake and also of fresh and brackish waters in other parts of India. Memoirs of Indian Museum, Calcutta 5: 563–659. Available from https://biodiversitylibrary.org/page/36511332 [accessed 15 Mar. 2021].
Stanley D.J. & Hait A.K. 2000. Holocene depositional patterns, neotectonics and Sundarban mangroves in the western Ganges–Brahmaputra delta. Journal of Coastal Research 16: 26–39. Available from https://www.jstor.org/stable/4300009 [accessed 15 Mar. 2021].
Støp-Bowitz C. 1948. Polychaeta from the “Michael Sars” North Atlantic Deep–Sea Exp. 1910. Report on the Scientific Results of the Michael Sars North Atlantic Deep-Sea Expedition 8: 1–91.
WoRMS Editorial Board. 2020. World Register of Marine Species. Available from http://www.marinespecies.org [accessed 2 Oct. 2020]. https://doi.org/10.14284/170
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