ABSTRACT Phylogenetic analyses of molecular sequence data obtained from the holotype of Marmosa regina Thomas, 1898, together with a reassessment of its morphological characters indicate that this species does not belong to the subgenus Micoureus as previously believed. Instead, both molecular and phenotypic data are consistent with the hypothesis that M. regina is a senior synonym of M. isthmica Goldman, 1912, in the subgenus Exulomarmosa. Because replacing isthmica with regina would create nomenclatural confusion, we recommend maintaining current usage of the former name and suppressing usage of the latter.

中文翻译：

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关于维多利亚负鼠的身份，Marmosa regina Thomas，1898 年

摘要 对从 Marmosa regina Thomas, 1898 的正模中获得的分子序列数据的系统发育分析，以及对其形态特征的重新评估表明，该物种不属于先前认为的 Micouureus 亚属。相反，分子和表型数据都与 M. regina 是 Exulomarmosa 亚属中 M. isthmica Goldman, 1912 的高级同义词的假设一致。因为用 regina 替换 isthmica 会造成命名混乱，我们建议保持前一个名称的当前使用并禁止使用后者。