In Australia, the deep-water (bathyal and abyssal) benthic invertebrate fauna is poorly known in comparison with that of shallow (subtidal and shelf) habitats. Benthic fauna from the deep eastern Australian margin was sampled systematically for the first time during 2017 RV ‘Investigator’ voyage ‘Sampling the Abyss’. Box core, Brenke sledge, and beam trawl samples were collected at one-degree intervals from Tasmania, 42°S, to southern Queensland, 24°S, from 900 to 4800 m depth. Annelids collected were identified by taxonomic experts on individual families around the world. A complete list of all identified species is presented, accompanied with brief morphological diagnoses, taxonomic remarks, and colour images. A total of more than 6000 annelid specimens consisting of 50 families (47 Polychaeta, one Echiura, two Sipuncula) and 214 species were recovered. Twenty-seven species were given valid names, 45 were assigned the qualifier cf., 87 the qualifier sp., and 55 species were considered new to science. Geographical ranges of 16 morphospecies extended along the eastern Australian margin to the Great Australian Bight, South Australia; however, these ranges need to be confirmed with genetic data. This work providing critical baseline biodiversity data on an important group of benthic invertebrates from a virtually unknown region of the world’s ocean will act as a springboard for future taxonomic and biogeographic studies in the area.

中文翻译：

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2017 年 RV“调查员”航行采集的澳大利亚东部深渊环节动物


在澳大利亚，与浅水（潮下和陆架）栖息地相比，深水（深海和深海）底栖无脊椎动物群知之甚少。在 2017 年 RV“调查员”航行“深渊采样”期间，首次对澳大利亚东部边缘深处的底栖动物群进行了系统采样。从塔斯马尼亚（南纬 42°）到昆士兰州南部（南纬 24°），从 900 米到 4800 米的深度，以 1 度的间隔收集箱芯、布伦克爬犁和游梁拖网样品。分类学专家对收集到的环节动物进行了世界各地各个科的鉴定。提供了所有已识别物种的完整列表，并附有简短的形态学诊断、分类学注释和彩色图像。共回收环节动物标本6000余份，分属50科（47多毛类、1种鳅浦属、2种星虫属）、214种。 27 个物种被赋予有效名称，45 个物种被指定为限定词 cf.，87 个物种被指定为限定词 sp.，55 个物种被认为是科学新物种。 16 个形态种的地理范围沿澳大利亚东部边缘延伸至南澳大利亚大澳大利亚湾；然而，这些范围需要用遗传数据来确认。这项工作提供了来自世界海洋几乎未知区域的一组重要底栖无脊椎动物的关键生物多样性基线数据，将成为该地区未来分类学和生物地理学研究的跳板。