Did Azara discover Myotis simus or Myotis midastacus (Mammalia: Chiroptera: Vespertilionidae) at least a century before their formal description?

ABSTRACT The true identity of the “Chauve-Souris Onzieme ou Chauve-Souris Cannelle” of Azara (1801) and the “LXXXII Murcielago Acanelado” of Azara (1802) has never been clarified. Though it has historically been associated with the Red Myotis, Myotis ruber (É. Geoffroy St.-Hilaire, 1806), there are clear inconsistencies with that species. Unusual features of the description such as the position of the attachment of the wing membrane to the limbs confirm that the species described by Azara belongs to the Myotis simus Thomas, 1901 group. Two members of that group occur in Paraguay, from where Azara described his specimen: Myotis cf. simus and the recently described Myotis midastacus Moratelli & Wilson, 2014. Measurements and collection locality slightly favour its identity as the former, but it is not possible to conclusively state which of these species Azara had in his possession.

摘要 阿扎拉（Azara）1801年记载的"第11号蝙蝠（Chauve-Souris Onzieme ou Chauve-Souris Cannelle）"与1802年记载的"第82号肉桂色蝙蝠（LXXXII Murcielago Acanelado）"的真实分类地位至今尚未得到明确界定。尽管历史上该类群曾被归入绯鼠耳蝠（Myotis ruber，É. Geoffroy St.-Hilaire, 1806），但二者存在显著的分类学矛盾。描述中诸如翼膜附着于肢体的位置等异常特征，证实阿扎拉所记载的物种隶属于1901年托马斯定名的狭翼鼠耳蝠类群（Myotis simus Thomas, 1901 group）。阿扎拉的标本采集自巴拉圭，该区域分布有该类群的两个成员：疑似狭翼鼠耳蝠（Myotis cf. simus）与近年定名的迈达斯鼠耳蝠（Myotis midastacus Moratelli & Wilson, 2014）。测量数据与采集地信息更倾向于将其归为前者，但目前仍无法确切判定阿扎拉所持标本究竟属于这两个物种中的哪一种。