湖南小溪国家级自然保护区发现缺齿鼹

A New Record of Mogera in the Xiaoxi National Nature Reserve,Hunan

缺齿鼹属Mogera隶属于劳亚食虫目Eulipotyphla鼹科Talpidae,是一类下颌无犬齿,第一前臼齿呈犬齿状的穴居动物。2020年11月,在湖南小溪国家级自然保护区采到缺齿鼹标本2号,并进行了形态和头骨测量。该缺齿鼹通体黑棕色,下腹部有一白斑;头骨狭长,颧弓纤细,颅顶较为扁平。基于标本(标本号:20201114002)cyt b、12S rRNA和rag1基因的序列一致性分析和系统发育分析:采到的缺齿鼹标本属于华南缺齿鼹M.latouchei,为湖南小溪国家级自然保护区新记录。本研究明确了湖南小溪国家级自然保护区缺齿鼹的分类学地位,拓展了对国内缺齿鼹种类分布的认识。

Species of Mogera(Eulipotyphla:Talpidae)are small burrowers without canine on mandible,and the first premolar are canine shape.In November 2020,two Mogera specimens were collected in the Xiaoxi National Nature Reserve,Hunan Province,China.The body is wholly black brown with a white spot on the abdomen.The zygomatic arch is slender and the skull top is flat.Sequences analysis of the cyt b,12S rRNA and rag1 genes and the phylogenetic analysis indicated that the No.20201114002 specimen belongs to M.latouchei,and is a new record of the Xiaoxi National Nature Reserve.This study clarifies the taxonomic status of M.latouchei in the Xiaoxi National Nature Reserve and expands our knowledge of the distribution of Mogera species.