中国耗兔亚属分类现状及分布  

CURRENT STATUS ON TAXONOMY AND DISTRIBUTION OF SUBGENUS PIKAIN CHINA

作　　者：牛屹东[1] 魏辅文[1] 李明[1] 冯祚建[1] 

机构地区：[1]中国科学院动物研究所,北京100080

出　　处：《动物分类学报》2001年第3期394-400,共7页Acta Zootaxonomica Sinica

基　　金：中国科学院"青年科学家创新小组"专项基金 ;国家自然科学基金重点项目 (编号 39730 0 80 ) ;中国科学院动物研究所系统进化研究中

摘　　要：对耗兔亚属分类地位问题进行了讨论 ,同时针对耗兔亚属中东北鼠兔、格氏鼠兔、木里鼠兔、贺兰山鼠兔及O .sushkini的分类地位存在争议进行了评述。根据目前的分类现状 ,列出中国耗兔亚属种、亚种名录及分布区 ,并附中国耗兔亚属分种检索表。Inthispaper,wegaveourviewonthedifferentiationofgenusOchotonaandapprovedofthetwosubgenusdetermination ,subgenusOchotonaandPika .AfterdiscussingthestatusofO .hyperborea ,O .gloveri,O .muliensis,O .helanshanensisandO .sushkiniaccordingtooldref erencesandcurrentachievementsinmolecularbiology ,weheldviewpointsthatO .hyperborea ,O .gloveri,andO .muliensisshouldberegardedasseparatedspeciesrespectively ,andthatbothO .helanshanensisandO .sushkinishouldbetreatedasthesubspeciesofO .pallasi.Then ,the listanddistributionofspeciesandsubspeciesinSubgenusPikaofChinaaregiveninthepresentpaper.Akeytothespeciesofthissubgenusisalsoprovided . KeytothespeciesofsubgenusPikainChina 1.Bodysizesmall;greatestlengthofskull,lessthan 43mm ;hindfoot,averaging 30mmorless,inlength O .hyperborea…… Bodysizelarge ;greatestlengthofskull,morethan 43mm ;hindfoot,averagingmorethan 30mm 2……………………… 2 .Withoutasmallovalforamenatanteriordorsalsurfaceofeachfrontal 3………………………………………………………… Withasmallovalforamenatanteriordorsalsurfaceofeachfrontal 7…………………………………………………………… 3.Earnotenlarged ,averaging 2 3(17 2 6 )mmorless ,inlength 4………………………………………………………………… Earenlarged ,onaveragemorethan 2 8(2 8 35 )mm 5…………………………………………………………………………… 4.Arufousorreddishrufousspotnotpresentedonthesideoftheneck ;interorbitalareabroader ,itsbreadthnormallyreachingor exceeding 4.5 (4 .1 6 .1)mm ;internallongitudinaldiameteroftheorbit ,averaginglessthanthelengthofdiastemaofskull O .alpina … ……………………………………………………………………………………………………………………… Arufousorreddishrufousspotfoundonthesideoftheneck ;interorbitalareanarrower,itsbreadthaveraginglessthan 4.0 (3 .3 4.4)mm ;internallongitudinaldiameteroftheorbitoftengreaterthanthelengthofdiastema O .pallasi……………………

关 键 词：耗兔亚属 分类地位 分布 种 亚种 

分 类 号：Q959.8[生物学—动物学]