A new parasitic copepod species of Tautochondria (Siphonostomatoida: Hyponeoidae), found in the narrowmouthed catshark Schroederichthys bivius from the Strait of Magellan |
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| Institution: | 1. Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Viña del Mar, Chile;2. Centro de Observación Marino para Estudios de Riesgo del Ambiente (Costa-R), Universidad de Valparaíso, Valparaíso, Chile;3. Research Center Dynamics of High Latitude Marine Ecosystems (Fondap- IDEAL), Universidad Austral de Chile, Valdivia, Chile;4. Laboratorio de Ecología de Macroalgas Antárticas y Sub antárticas, Universidad de Magallanes, Punta Arenas, Chile;1. Department of Parasitology, São Paulo State University (UNESP), Institute of Biosciences, Rua Professor Doutor Antônio Celso Wagner Zanin, 250, Botucatu, São Paulo CEP 18618-689, Brazil;2. Department of Ecology and Evolutionary Biology, Federal University of São Paulo (Unifesp), Rua Professor Arthur Riedel, 275, Jardim Eldorado, Diadema, São Paulo 09972-270, Brazil;3. Universidade Federal de Uberlândia – UFU, Instituto de Ciências Agrárias, LMG-746, Km 1, Monte Carmelo 38500-000, MG, Brazil;4. Laboratório de Biologia Celular e Helmintologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil;5. Laboratório de Histologia e Embriologia Animal, Instituto da Saúde e Produção Animal, Universidade Federal Rural da Amazônia, Belém, Pará, Brazil;6. Núcleo Regional de Ofiologia, Federal University of Ceará (UFC), Fortaleza, Ceará CEP 60455-760, Brazil;1. Graduate School of Environmental Sciences, The University of Shiga Prefecture, Hassaka-cho, 2500 Hikone, Shiga Prefecture, Japan;2. Department of Environmental Sciences, The University of Shiga Prefecture, Hassaka-cho, 2500 Hikone, Shiga, Japan;3. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihon-matsu-cho, Sakyo, Kyoto, Japan;4. Graduate School of Global Environmental Studies, Kyoto University, Yoshida-hon-machi, Sakyo, Kyoto, Japan;1. Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Egypt;2. Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Egypt;1. Hokkaido Research Organization Fisheries Research Department, Wakkanai Fisheries Research Institute, 4-5-15, Suehiro, Wakkanai, Hokkaido 097-0001, Japan;2. School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan |
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| Abstract: | Hyponeoidae is a copepod family that is rare around the world, with only three species described until now. Recently, a hyponeoid copepod was found in the narrowmouthed catshark, Schroederichthys bivius, from Chile, which has not been formally described. The objective of this study is to describe morphologically a new species of Hyponeoidae, from samples of the Strait of Magellan, Southern Chile. Also, a genetic analysis, based on the COI gene, was used to determine the relatedness of the new hyponeoid species to other copepods from Siphonostomatoida, which were available in the GenBank platform. The new species belongs to the genus Tautochondria and is here described as T. magellanica n. sp. This species differs from T. dolichoura mainly in the presence of long process at each side of the buccal cone, the absence of lobes on the head and short processes on the genital complex. According to the genetic sequences, T. magellanica n. sp. was not closely related to any other species. Therefore, this result confirms that Hyponeoidae is a separate family. However, the relatedness to other genera in Siphonostomatoida is still unknown. |
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