兽类学报2026，Vol.46Issue(3)：320-336,17.DOI:10.16829/j.slxb.151123
中国西南地区鼠耳蝠属(翼手目:蝙蝠科)两新种
Two new species of Myotis(Chiroptera:Vespertilionidae)from southwest-ern China
摘要
Abstract
The genus Myotis is one of the most widely distributed genera of terrestrial vertebrates.It includes 140 recog-nized species worldwide,29 of which are recorded in China.Ongoing taxonomic research continues to uncover new spe-cies within this group.In this study,we employed classical taxonomic approaches,including comparisons of external morphology and cranial characteristics,complemented by molecular biological methods to analyze bats collected from Shuangbai(n=9)and Yongde(n=2)in Yunnan Province.The results show that these specimens belong to Myotis,but do not belong to any of the existing Myotis species that have been described,and have reached the genetic distance of species-level differentiation.Therefore,we describe them as two new species:Myotis shuangbaiensis Li & Qian,sp.nov.and Myotis yongdensis Li & Qian,sp.nov.The diagnostic features of Myotis shuangbaiensis include dorsal fur with black bases and light brown tips,and ventral fur with black bases and grayish-white tips.The plagiopatagium at-taches to the base of the first toe on the hindfoot.The upper inner incisor(I2)and upper outer incisor(I3)are similar in size.The crown height of the second lower premolar(P2)is less than half that of the lower canine.Both the basal area and crown height of the third lower premolar(P3)are approximately two-thirds those of the second lower premolar(P2).The diagnostic features of Myotis yongdensis include dark reddish-brown dorsal fur,and ventral fur with brownish-black bases and grayish-white tips.The ventral side of the interfemoral membrane is covered with moderately dense short fur.The plagiopatagium attaches to the base of the metatarsus of the hindfoot.The tragus has a rounded tip.The crown height of the third upper premolar(P3)is approximately half that of the second upper premolar(P2).These findings re-veal significant persistent knowledge gaps in Myotis taxonomy and enhance the understanding of biodiversity richness in Southwestern China.关键词
鼠耳蝠属/新种/云南/形态学/系统发育Key words
Myotis/New species/Yunnan/Morphology/Phylogeny分类
生物科学引用本文复制引用
钱怡顺,牟鑫,罗斌,李小平,罗云丽,李松..中国西南地区鼠耳蝠属(翼手目:蝙蝠科)两新种[J].兽类学报,2026,46(3):320-336,17.基金项目
中国西北及西南地区翼手目物种多样性及分布调查项目(2021FY100302) （2021FY100302）
中国科学院生物分类学科学家岗位项目(CAS-TAX-24-055) （CAS-TAX-24-055）
