1 (30)_[New Taxa]_A new genus and two new species of freshwater mussel Unioninae (Bivalvia: Unionida) endemic to Yunnan of SW China
Hong-Quan XIANG 向泓铨, Yi-Zhi LU 鲁怡之, Yue-Ming HE 何岳铭 & Chong-Ye LI 李重晔
Abstract: The ancient plateau lakes of Yunnan have long been known for their high diversity of mollusks. However, in recent times, human-induced pollution and habitat destruction have led to a severe decline in the diversity of Unionidae species. Since 2000, no living native Unionidae species have been discovered. This study, based on previous research records, conducted a comprehensive survey of the Unionidae species in the ancient plateau lakes of Yunnan. Only one living native freshwater mussel, Mimo guoliangi gen. nov. sp. nov., was found. Molecular analysis using mitochondrial, nuclear gene fragments (COI and 28S) and mitochondrial genome confirmed the species’ validity. Additionally, through morphological descriptions, this study identifies a possibly extinct species from Lake Fuxian: Mimo jiaoyue gen. nov. sp. nov.
Keywords: Plateau Lakes, taxonomy, Southwest China, Yunnan-Guizhou Plateau
摘要：云南古高原湖泊一直以来就以其丰富的软体动物多样性而闻名。然而近年来，人为污染和栖息地破坏导致蚌科物种多样性严重下降。自2000年以来，没有发现任何现存的本土蚌科物种。本研究在前人研究记录的基础上，对云南古高原湖泊中的蚌科物种进行了全面调查，仅发现一种现存的本土淡水蚌Mimo guoliangi gen. nov. sp. nov.。利用线粒体、核基因片段（COI和28S）和线粒体基因组进行分子分析，证实了该物种的有效性。此外，通过形态学描述，本研究在抚仙湖中鉴定了一个可能已经灭绝的物种：Mimo jiaoyue gen. nov. sp. nov.。
关键词：高原湖泊，分类学，西南地区，云贵高原
Published online: 2025-02-12 23:23:28