Streicher Jeffrey W, Hamidy Amir, Harvey Michael B, Anders Ben, Shaney Kyle J, Kurniawan Nia, Smith Ric N
Department of Biology, The University of Texas at Arlington, Arlington, Texas 76019, USA. Present Address: Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona 85721, USA.; Email:
Research and Development Center for Biology, Indonesian Institute of Science (LIPI), Widyasatwaloka Building, Cibinong 16911, West Java, Indonesia.; Email:
Zootaxa. 2014 Oct 28;3878(4):351-65. doi: 10.11646/zootaxa.3878.4.2.
The Indonesian island of Sumatra contains several endemic species of parachuting frog of the genus Rhacophorus. Most of these are known from small type series collected from only a few localities, and consequently, many Sumatran Rhacophorus species are poorly understood. Using mitochondrial DNA (mtDNA), we investigated relationships among a group of Rhacophorus species from southern Sumatra. Our molecular analysis was based on a fragment of the 16S ribosomal subunit gene (16S) and included data derived from type specimens of two species endemic to Sumatra: R. barisani and R. catamitus. Our analyses of these data reveal that the only known female specimen of R. catamitus possesses a divergent 16S sequence compared to male specimens (8.82%; uncorrected "p" distance). Based on phylogenetic reconstructions, we found that this female specimen belongs to an unnamed taxon related to R. margaritifer from Java. Consequently, we remove the specimen from R. catamitus and describe it as R. bengkuluensis sp. nov., a medium-sized slender tree frog with extensive brown hand webbing. We identified additional specimens referable to the new species using mtDNA and morphology. These specimens originate from low to intermediate elevations (ca. 600-1600 m) in the provinces of Bengkulu and Lampung, suggesting that R. bengkuluenis is widely distributed across the southwestern versant of the Bukit Barisan.
印度尼西亚的苏门答腊岛有几种树蛙属的特有降落伞蛙。其中大多数仅从少数几个地点采集的小类型系列标本中得知，因此，许多苏门答腊树蛙属物种了解甚少。我们利用线粒体DNA（mtDNA）研究了来自苏门答腊岛南部的一组树蛙属物种之间的关系。我们的分子分析基于16S核糖体亚基基因（16S）的一个片段，并纳入了来自苏门答腊岛特有的两个物种：巴里萨尼树蛙（R. barisani）和卡塔米图斯树蛙（R. catamitus）的模式标本的数据。我们对这些数据的分析表明，与雄性标本相比，卡塔米图斯树蛙唯一已知的雌性标本拥有一个不同的16S序列（8.82%；未校正的“p”距离）。基于系统发育重建，我们发现这个雌性标本属于一个与来自爪哇的珍珠树蛙（R. margaritifer）相关的未命名分类单元。因此，我们将该标本从卡塔米图斯树蛙中移除，并将其描述为新物种本古鲁树蛙（R. bengkuluensis sp. nov.），一种中等体型的细长树蛙，手部有广泛的棕色蹼。我们利用mtDNA和形态学鉴定出了更多可归入新物种的标本。这些标本来自本古鲁省和楠榜省的低海拔至中海拔地区（约600 - 1600米），这表明本古鲁树蛙广泛分布于巴里桑山脉的西南坡。
