Menezes Fernando Heberson, Semedo Thiago Borges Fernandes, Saldanha Juliane, Garbino Guilherme Siniciato Terra, Fernandes-Ferreira Hugo, Cordeiro-Estrela Pedro, da Costa Itayguara Ribeiro
Programa de Pós-Graduação em Sistemática, Uso e Conservação da Biodiversidade, Departamento de Biologia, Centro de Ciências, Campus do Pici, Universidade Federal do Ceará, Fortaleza, Ceará, 60455-760, Brazil.
Laboratório de Mamíferos, Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Campus I, Universidade Federal da Paraíba, Castelo Branco, João Pessoa, Paraíba, 58051-900, Brazil.
Zookeys. 2023 Sep 11;1179:139-155. doi: 10.3897/zookeys.1179.108766. eCollection 2023.
The New World porcupines of the genus comprise 16 species of arboreal nocturnal rodents. Some of these species are poorly known and have not been included in phylogenetic analyses. Based on recently collected specimens with associated tissue from the Brazilian Amazonia, we investigate the distribution and phylogenetic relationships of Roosmalens' dwarf porcupine, , using an integrative approach using mitochondrial gene sequences and morphological data from new specimens and localities. Our results recovered in the subgenus Caaporamys. However, analyses of our molecular and combined datasets produced different topologies. The new record shows the presence of 480 km to the southeast of the Rio Madeira and 95 km away from Rio Juruena in Mato Grosso state, indicating a wider distribution in southern Amazonia than suspected. All known records of are in the Madeira biogeographical province, to which it might be endemic.
该属的新大陆豪猪包括16种树栖夜行性啮齿动物。其中一些物种鲜为人知，尚未纳入系统发育分析。基于最近从巴西亚马逊地区收集的带有相关组织的标本，我们采用综合方法，利用线粒体基因序列以及新标本和新地点的形态学数据，研究了鲁斯马伦侏儒豪猪（Coendou roosmalensii）的分布和系统发育关系。我们的结果将鲁斯马伦侏儒豪猪归入卡波拉米斯亚属（Caaporamys）。然而，对我们的分子数据集和综合数据集的分析产生了不同的拓扑结构。新记录显示，在马德拉河（Rio Madeira）东南480公里处以及马托格罗索州距离茹鲁埃纳河（Rio Juruena）95公里处存在鲁斯马伦侏儒豪猪，这表明其在亚马逊南部的分布比之前推测的更广。鲁斯马伦侏儒豪猪的所有已知记录都在马德拉生物地理省，它可能是该省特有的物种。
