Setiawan Edwin, Erpenbeck Dirk, WÖrheide Gert, De Voogd Nicole J
Department of Earth and Environmental Science, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, Munich, Germany. Zoology and Animal Engineering Lab, Department of Biology, Institut Teknologi Sepuluh November, Surabaya Indonesia.
Zootaxa. 2018 Oct 15;4500(1):43-58. doi: 10.11646/zootaxa.4500.1.2.
Sponges of the order Haplosclerida are often abundant and characteristic components of Indo-Pacific reefs, but are often misidentified, because of the lack of clear distinctive morphological characters. Neopetrosia exigua is an example of a haplosclerid sponge that is very common in Indonesian shallow coral reef environments but bears several different names. In the present study we investigated type material of several Indo-Pacific Neopetrosia species with a similar morphology and examined freshly collected specimen materials including specimens that are deposited at several institutions. In addition, we used molecular phylogenetic methods for assisting the morphological examinations. We conclude that the true identity of Neopetrosia exigua should be Neopetrosia chaliniformis. Likewise, N. exigua and N. pacifica should be considered as junior synonyms of N. chaliniformis. In conclusion, we advocate that molecular barcoding could significantly aid on sponge species' delimitation that possess limited morphological characters.
单沟型海绵目海绵通常是印度 - 太平洋珊瑚礁中数量丰富且具有代表性的组成部分，但由于缺乏清晰独特的形态特征，它们常常被误认。微小新石海绵就是单沟型海绵的一个例子，它在印度尼西亚浅海珊瑚礁环境中非常常见，但却有几个不同的名称。在本研究中，我们调查了几种形态相似的印度 - 太平洋新石海绵属物种的模式标本，并检查了新采集的标本材料，包括保存在几个机构的标本。此外，我们使用分子系统发育方法辅助形态学检查。我们得出结论，微小新石海绵的正确身份应为漏斗新石海绵。同样，微小新石海绵和太平洋新石海绵应被视为漏斗新石海绵的次异名。总之，我们主张分子条形码技术可以显著有助于对形态特征有限的海绵物种进行界定。
