New occurrence of Poraniidae (Valvatacea, Asteroidea) in Australia with a new genus and species from deep-sea settings (1996-2018)

The Poraniidae (Asteroidea, Valvatacea) is recorded for the first time from Australian waters at deep-sea (&gt;200 m) depths, including, at present, Australia’s deepest known asteroid occurrence from 3850 m. Three genera are reviewed, each represented by a single species, Poraniomorpha tartarus n. sp., Marginaster paucispinus Fisher 1913, and Marginaster patriciae McKnight 2006, which is reassigned to the new genus, Bathymarginaster. Comparisons with other asteroid groups similar to the Poraniidae in Australian waters is made and a key to genera of the Poraniidae is provided. The data has been acquired on the following RV Investigator voyage(s) <a href=\"https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2015_C01\">IN2015_C01</a> <a href=\"https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2015_C02\">IN2015_C02</a> <a href=\"https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2017_V03\">IN2017_V03</a> and <a href=\"https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2018_V06\">IN2018_V06</a> with links to additional metadata, datasets, events, deployments, publications etc. If this data has been used in any products, please acknowledge with the following: We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353) in undertaking this research.本研究首次在澳大利亚海域的深海（水深＞200米）环境中报道滑海星科（Poraniidae，海星纲Asteroidea，瓣棘海星目Valvatacea）物种，其中包含目前已知澳大利亚海域最深的海星分布记录，采集水深达3850米。本次共完成3个属的分类学修订，各属仅含1个有效物种：深渊拟滑海星（Poraniomorpha tartarus n. sp.，新种）、少棘缘海星（Marginaster paucispinus Fisher, 1913）以及McKnight于2006年发表的帕特丽夏缘海星（Marginaster patriciae McKnight, 2006），该种现已被重新归入新属深海缘海星属（Bathymarginaster）。本研究还对比了澳大利亚海域内与滑海星科形态相似的其他海星类群，并提供了滑海星科的属级分类检索表。 本数据集采集自“调查者号”科考船（RV Investigator）的以下航次：<a href="https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2015_C01">IN2015_C01</a>、<a href="https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2015_C02">IN2015_C02</a>、<a href="https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2017_V03">IN2017_V03</a>及<a href="https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2018_V06">IN2018_V06</a>，上述链接可获取额外的元数据、数据集、科考事件记录、部署记录及相关出版物等资料。 若本数据集被应用于任何成果产出，请按以下规范进行致谢：本研究使用了澳大利亚联邦科学与工业研究组织（CSIRO）海洋国家设施（https://ror.org/01mae9353）的科考资源。