Integrative systematics illuminates the relationships in two sponge-associated hydrozoan families (Capitata: Sphaerocorynidae and Zancleopsidae)
Bijdragen tot de Dierkunde, vol. 90, pp. 487–525
Abstract
Abstract An integrated approach using morphological and genetic data is needed to disentangle taxonomic uncertainties affecting the hydrozoan families Sphaerocorynidae and Zancleopsidae. Here we used this approach to accurately characterise species in these families, identify the previously unknown polyp stages of the genera Euphysilla and Zancleopsis, which were originally described exclusively based on the medusa stages, describe a new sphaerocorynid genus and species, and assess the phylogenetic position of the two families within the Capitata. The monotypic genus Astrocoryne was found to be a synonym of Zancleopsis. Astrocoryne cabela was therefore transferred to the genus Zancleopsis as Zancleopsis cabela comb. nov. The new polyp-based genus and species Kudacoryne diaphana gen. nov. sp. nov. was erected within the Sphaerocorynidae. Both taxa are primarily based on genetic data, but the introduction of this new genus was made necessary by the fact that it clustered with the genera Heterocoryne and Euphysilla, despite showing Sphaerocoryne-like polyps. Interestingly, the species analysed in this work showed contrasting biogeographical patterns. Based on our data and literature records, some species appear to have a wide circumtropical range, whereas others are limited to few localities. Overall, these results lay the ground for future investigations aimed at resolving the taxonomy and systematics of these two enigmatic families.
Authors 12
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Affiliation as printed
Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy
Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo Island, Republic of Maldives, davide.maggioni@unimib.it
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Natural History Museum of Geneva
Affiliation as printed
Muséum d’Histoire Naturelle, 1208 Geneva, Switzerland, Peter.Schuchert@ville-ge.ch
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Stazione Zoologica Anton Dohrn
Affiliation as printed
Department of Biology and Evolution of Marine Organisms (BEOM), Stazione Zoologica Anton Dohrn, 80121 Naples, Italy, roberto.arrigoni@szn.it
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Bert Willem Hoeksema Aachen Taxonomy Systematics and Geodiversity Group Naturalis Biodiversity Center
Naturalis Biodiversity Center · University of Groningen
Affiliation as printed
Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700 CC Groningen, The Netherlands, bert.hoeksema@naturalis.nl
Taxonomy, Systematics and Geodiversity Group, Naturalis Biodiversity Center, 2300 RA Leiden, The Netherlands
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National University of Singapore · Tropical Marine Science Institute
Affiliation as printed
Department of Biological Sciences, Tropical Marine Science Institute and Centre for Nature-based Climate Solutions, National University of Singapore, 117558 Singapore, Singapore, huangdanwei@nus.edu.sg
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Affiliation as printed
Faculty of Biological and Environmental Sciences, University of Helsinki, 00790 Helsinki, Finland, giovanni.strona@helsinki.fi
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Affiliation as printed
Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy
Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo Island, Republic of Maldives, davide.seveso@unimib.it
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King Abdullah University of Science and Technology
Affiliation as printed
Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), 23955–6900 Thuwal, Saudi Arabia, michael.berumen@kaust.edu.sa
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Affiliation as printed
Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy
Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo Island, Republic of Maldives, enrico.montalbetti@unimib.it
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Florida Museum of Natural History
Affiliation as printed
Independent researcher, Florida Museum of Natural History, 3215 Gainesville, Florida, USA, rc6684@icloud.com
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Affiliation as printed
Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy
Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo Island, Republic of Maldives, paolo.galli@unimib.it
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Affiliation as printed
Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy
Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo Island, Republic of Maldives, simone.montano@unimib.it
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