Abstract
In the present work was carried out in the intertidal zone of Las Baulas de Guanacaste National Marine Park (PNMB) located on the Pacific coast of Costa Rica.
The main objective was to contribute to knowledge about the invertebrate diversity of the park, one of the richest bioregions on the planet, about which little is known. This study assesses the Order Polycladida Lang, 1884, a cornerstone of this ecosystem and one of the most cosmopolitan and plastic invertebrate taxa in the animal kingdom.
In total, 57 individuals were collected in the rocky intertidal zone of Carbón and Langosta beaches. Nine different species were identified, of which four are new for Costa Rica: Semonia bauliensis n. sp.; Cryptostylochus sesei n. sp.; Paraplanocera angeli n. sp., Prostheceraeus fitae n. sp.; and five new records: Paraplanocera oligoglena (Schmarda, 1859); Marcusia ernesti Hyman, 1953; Enchiridium magec Cuadrado, Moro & Noreña, 2017; Pseudobiceros bajae (Hyman, 1953); and the genus Boninia spp.
References
Bock, S. (1913) Studien über Polycladen. Zoologiska bidrag från Uppsala, 2, 31–344.
Bock, S. (1923) Boninia, a new Polyclad genus from the pacific. Nova Acta Regiae Societatis Scientiarum Upsaliensis, 4, 1–32.
Bock, S. (1925) Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16. Parts I–III. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjøbenhavn, 79, 1–84.
Bulnes, V.N., Faubel, A. & Park, J.K. (2005) Two new marine species from South Korea with remarks on the family Stylochidae (Acotylea, Polycladida, Plathelminthes). Journal of Natural History, 39, 2089–2107.
https://doi.org/10.1080/00222930500081997
Castro, E.M., Peña, J.C., Esquivel, J.M. & Acuña, F.P. (1984) Comparación entre dos poblaciones de Acanthina brevidentata (Gastropoda: Mollusca) en dos zonas rocosas de Playa Panamá, Guanacaste, Costa Rica. Revista de Biología Tropical, 32, 11–15.
Cuadrado, D., Moro, L. & Noreña, C. (2017) The Polycladida (Platyhelminthes) in the Canary Islands. New genus, species and records. Zootaxa, 4312 (1), 38–68.
https://doi.org/10.11646/zootaxa.4312.1.2
Dexter, D.M. (1974) Sandy-beach fauna of the Pacific and Atlantic coasts of Costa Rica and Colombia. Revista de Biología Tropical, 22, 51–66.
Dixit, S., Raghunathan, C. & Chandra, K. (2017) Two new Pseudoceros (Polycladida: Pseudocerotidae) and a Prostheceraeus (Polycladida: Euryleptidae) from Andaman and Nicobar Islands, India. Zootaxa, 4269 (4), 495–512.
https://doi.org/10.11646/zootaxa.4269.4.5
Faubel, A. (1983) The Polycladida, Turbellaria; Proposal and establishment of a new system. Part I. The Acotylea. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 80, 17–121.
Faubel, A. (1984) The Polycladida, Turbellaria; Proposal and establishment of a new system. Part II. The Cotylea. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 81, 189–259.
Faubel, A. & Gollasch, S. (1996) Cryptostylochus hullensis sp. nov. (Polycladida, Acotylea, Platyhelminthes): a possible case of transoceanic dispersal on a ship’s hull. Helgoländer Meeresuntersuchungen, 50 (4), 533–537.
https://doi.org/10.1007/BF02367165
Faubel, A., Sluys, R. & Reid, D.G. (2007) A new genus and species of polyclad flatworm found in the mantle cavities of gastropod molluscs in the high-intertidal zone of the Pacific coast of Central America. Journal of the Marine Biological Association of the United Kingdom, 87, 429–434.
https://doi.org/10.1017/S0025315407055245
Fonseca, A.C. (2006) Golfo de Papagayo. In; Nielsen-Muñoz, V. & Alpizar-Quesada, M.A. (Eds.), Ambientes Marino Costeros de Costa Rica. Conservación Internacional San José, San José, pp. 186–194.
Hyman L.H. (1953) Some polyclad flatworms from the Galapagos Islands. Allan Hancock Pacific Expedition, 15 (2), 183–210.
Hyman, L.H. (1953) The polyclad flatworms of the Pacific coast of North America. Bulletin of the American Museum of Natural History, 100, 265–392.
Hyman, L.H. (1954) Some Polyclad Flatworms from the Hawaiian Islands. Pacific Science, 8, 331–336.
Hyman, L.H. (1955) The polyclad flatworms of the Pacific coast of North America: additions and corrections. American Museum Novitates, 1704, 1–11.
Hyman, L.H. (1959) A further study of Micronesian polyclad flatworms. Proceedings of the United States National Museum, 108, 543–597.
https://doi.org/10.5479/si.00963801.108-3410.543
Hyman L.H. (1960) Second report on Hawaiian polyclads. Pacific Science, 14, 308–330.
Kato, K. (1937) Polyclads collected in Idu, Japan. Japanese Journal of Zoology, 7, 211–232.
Kato, K. (1944) Polyclad turbellarians from the neighbourhood of the Mitsui Institute of Marine Biology. Japanese Journal of Zoology, 6, 123–138.
Laidlaw, F.F. (1902) The marine Turbellaria, with an account of the anatomy of some of the species. The fauna and geography of the Maldive and Laccadive archipelagos, 1, 282–312.
Laidlaw, F.F. (1903) On the marine fauna of Zanzibar and British East Africa, from collections made by Cyril Crossland in the years of 1901 and 1902. Turbellaria Polycladida. Part I. The Acotylea. Proceedings of the Zoological Society, 2, 99–113.
Lang, A. (1884) Die Polycladen (Seeplanarien) des Golfes von Neapel und der angrenzenden Meeresabschnitte. Eine Monographie. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeresabschnitte, herausgegeben von der Zoologischen Station in Neapel. W. Engelmann, Leipzig, 688 pp.
https://doi.org/10.5962/bhl.title.10545
Marcus, E. (1954) Reports of The Lund University Chile Expedition 1948–49. II. Turbellaria. Lunds Universitets Årsskrift, 49, 3–115.
Marcus, E. & Marcus, Er. (1966) Systematische Übersicht der Polycladen. Zoologische Beiträge, 12, 319–343.
Marcus, E. & Marcus, Er. (1968) Polycladida from Curaçao and faunistically related regions. Studies on the Fauna of Curaçao and other Caribbean Islands, 26, 1–134.
Meyer, F. (1922) Polycladen von Koseir (Rotes Meer). Kollektion Professor Klunzinger.) Archiv für Naturgeschichte, Abteilung A, 87, 138–158.
Montagu, G. (1815) Description of several new or rare animals principally marine, discovered on the south coast of Devonshire. Transactions of the Linnean Society of London, 11, 25–26.
https://doi.org/10.1111/j.1096-3642.1813.tb00035.x
Mora, A., Fernández, C. & Guzmán, A.G. (2006) Áreas Marinas Protegidas y Áreas Marinas de Uso Múltiple de Costa Rica-Notas para una discusión. Fundación MarViva, San José, 104 pp.
Nordmoe, E.D., Sieg, A.E., Sotherland, P.R., Spotila, J.R., Paladino, F.V. & Reina, R.D. (2004) Nest site fidelity of leatherback turtles at Playa Grande, Costa Rica. Animal Behaviour, 68, 387–394.
https://doi.org/10.1016/j.anbehav.2003.07.015
Plehn, M. (1896) Neue Polycladen, gesammelt von Herrn Kapitän Chierchia bei der Erdumschiffung der Korvette Vettor Pisani, von Herrn Prof. Dr. Kükenthal im nördlichem Eismeer und von Herrn Prof Dr. Semon in Java. Jenaische Zeitschrift für Naturwissenschaft, 30, 137–181.
Poche, F. (1926) Das System der Platodaria. Archiv für Naturgeschichte, 91, 1-458.
Prudhoe, S. (1978) Polyclad turbellarians from the southern coasts of Australia. Records of the South Australian Museum, 18, 361–384.
Romeis, B. (1989) Mikroskopische Technik. Urban und Schwarzenberg, München, Wien, Baltimore, 697 pp.
Schmarda, L.K. (1859) Neue wirbellose Thiere beobachtet und gesammelt auf einer Reise um die Erde 1853 bis 1857. Verlag von Wihelm Engelmann, Leipzig, 164 pp.
https://doi.org/10.5962/bhl.title.85313
Sibaja-Cordero, J.A. & Vargas-Zamora, J.A. (2006) The vertical zonation of epifauna and algae species in rocky substrates of the Gulf of Nicoya, Costa Rica. Revista de Biología Tropical, 54, 49–67.
Sibaja-Cordero, J.A. & Cortés, J. (2008) Vertical zonation of rocky intertidal organisms in a seasonal upwelling area (Eastern Tropical Pacific). Revista de Biología Tropical, 56, 91–104.
Spight, T.M. (1978) Temporal changes in a tropical rocky shore snail community. The Veliger, 21, 137–143.
Stimpson, W. (1857) Descriptions of some new marine Invertebrata. Proceedings of the Academy of Natural Sciences of Philadelphia, 7, 385–394.
Tyler, S., Artois, T., Schilling, S., Hooge, M. & Bush, L.F. (2006–2018) World list of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Available from: http://www.marinespecies.org/turbellarians/ (accessed 4 May 2020)
Villalobos, C.R. (1980a) Variations in population structure in the genus Tetraclita (Crustacea: Cirripedia) between temperate and tropical populations. III. T. stalactifera in Costa Rica. Revista de Biología Tropical, 28, 193–201.
Villalobos, C.R. (1980b) Algunas consideraciones sobre el efecto de los factores físicos y biológicos en la estructura de una comunidad de algas en el Pacífico de Costa Rica. Brenesia, 18, 289–300.
Wehrtmann, I.S., Cortés, J. & Echeverría-Sáenz, S. (2009) Marine biodiversity of Costa Rica: perspectives and conclusions. In: Wehrtmann, I.S., & Cortés, J. (Eds.), Marine Biodiversity of Costa Rica, Central America. Springer, Dordrecht, pp. 521–533.
https://doi.org/10.1007/978-1-4020-8278-8_49
Willey, A. (1897) Letters from New Guinea on Nautilus and some other organisms. The Quarterly Journal of Microscopical Science, 39, 145–180.
Woodworth, W.M. (1894) Report on the Turbellaria (Albatross-Report 9). Bulletin of the Museum of Comparative Zoology at Harvard College, 25, 49–52.
Woodworth, W.M. (1898) Some Planarians from the Great Barrier Reef of Australia. Bulletin of the Museum of Comparative Zoology, 31, 63–67.
Yeri, M. & Kaburaki, T. (1918) Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokyo Imperial University, 39, 1–54.