Within the spiny trapdoor spider genus Euoplos Rainbow exists a group of species from south-eastern Queensland that create unusual ‘palisade’ burrow entrances. Despite their intriguing burrows, the group was only recently circumscribed, and all species within it were undescribed. In this study, by undertaking a molecular phylogenetic analysis of two mitochondrial markers and seven nuclear markers, we confirm that the palisade trapdoor spiders, here formally named the ‘turrificus-group’, are monophyletic. We further recognise four species based on morphological, molecular and behavioural characters: E. crenatus, sp. nov., E. goomboorian, sp. nov., E. thynnearum, sp. nov. and E. turrificus, sp. nov. Morphological taxonomic data for each species are presented alongside information on their distribution, habitat preferences and burrow architecture. A key to species within the turrificus-group is also provided. The unusual burrow entrances of these spiders, which project out from the surrounding substrate, are found to exhibit structural autapomorphies, which allow species-level identification. Consequently, we include features of burrow architecture in our key and species diagnoses. This provides a non-intrusive method for distinguishing species in the field. Finally, we conclude that all species within the turrificus-group are likely to represent short-range endemic taxa. http://zoobank.org/urn:lsid:zoobank.org:pub:F2E042DC-DA14-4751-A48B-A367ABC272D9

中文翻译：

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昆士兰东南部栅栏活板门蜘蛛（Euoplos）的系统学（Araneae：Mygalomorphae：Idiopidae）：四个新物种以其洞穴入口结构而著称

在多刺的活板门蜘蛛属 Euoplos Rainbow 中存在着一群来自昆士兰东南部的物种，它们创造了不寻常的“栅栏”洞穴入口。尽管它们的洞穴很有趣，但该群体最近才被限定，并且其中的所有物种都没有被描述。在这项研究中，通过对两个线粒体标记和七个核标记进行分子系统发育分析，我们确认栅栏活门蜘蛛（这里正式命名为“turrificus-group”）是单系的。我们根据形态、分子和行为特征进一步识别了四种物种：E. crenatus、sp。nov., E. goomboorian, sp. 十一月，E. thynnearum，sp。十一月 和 E. turrificus, sp。十一月 每个物种的形态分类数据与其分布、栖息地偏好和洞穴结构的信息一起呈现。还提供了 turrificus 组内物种的关键。这些蜘蛛不寻常的洞穴入口从周围的基质中伸出，被发现表现出结构自变态，可以进行物种级别的识别。因此，我们在关键和物种诊断中包含了洞穴结构的特征。这为在野外区分物种提供了一种非侵入性的方法。最后，我们得出结论，turrificus 组内的所有物种都可能代表短程地方性分类群。http://zoobank.org/urn:lsid:zoobank.org:pub:F2E042DC-DA14-4751-A48B-A367ABC272D9 允许物种级别的识别。因此，我们在关键和物种诊断中包含了洞穴结构的特征。这提供了一种在野外区分物种的非侵入性方法。最后，我们得出结论，turrificus 组内的所有物种都可能代表短程地方性分类群。http://zoobank.org/urn:lsid:zoobank.org:pub:F2E042DC-DA14-4751-A48B-A367ABC272D9 这允许物种级别的识别。因此，我们在关键和物种诊断中包含了洞穴结构的特征。这为在野外区分物种提供了一种非侵入性的方法。最后，我们得出结论，turrificus 组内的所有物种都可能代表短程地方性分类群。http://zoobank.org/urn:lsid:zoobank.org:pub:F2E042DC-DA14-4751-A48B-A367ABC272D9