摘要
通过系统观察我国西南部的橙腹长吻松鼠,应分为4亚种。西藏东南部米什米山区、察隅和云南西北部高黎贡山一带的D.l.subflaviventris应为一有效亚种;西藏南部聂拉木等地的橙腹长吻松鼠D.l.nielamuensis为新亚种,它们有头骨小、体色浅等特点;西藏南部雅鲁藏布江大拐弯以西的墨脱亚种D.l.motuoensis也为有效亚种:南亚亚种D.l.garonum亦应有效。
This paper reports a result for taxonomic research of subspecies on Orange-bellied Himalayan squirrel(Dremomys lokriah) from southwest China. At the end of the classification of subspecies of Dremomys lokriah, notes in 1965, J. C. Moore and G. H. H. Tate reported only a subspcies ( i. e. D. l. lokriah) from south and southwest Tiber in China. Late, Cai Guiquan and Zhang Naizhi (1980) described a new subspecies, D. l. motuoensis, from the Motuo region in southeast Tibet, and Feng Zuojian et al., (1980, 1986) reported a new distribution of D. I. garonum in southeast Tibet. But they believed that the specimens from Zayul, southeast Tibet ( belong to D.I. subflaviventris) was a synonym of D. 1. garonum (belong to D. l. macmi-llani by Ellerman 1965), and the specimens from Nielamu, southern Tibet was believed as D. 1. lokriah. After comparison and analysis carefully, we believe that D. I. subflaviventris from southeast Tibet and Mt. Gaoligong border between Burma and Yunnan, China was a wild subspecies. It is distinguished from D. l. lokriah by its darker, more brown less chraceous orange dorsal pelage, by shorter Palatal, and by distributive region segregated, and from D. l. macmillani by lacking a middorsal balcklish stripe, and specimens collected from Nielamu, southern Tibet is a new subspecies. So there are 7 subspecies of Dremomys lokriah were described, and four of these subspecies distributed over China. In addition, one form needs to be studied in the future in China. They are.( 1 ) Dremomys lokriah garonum Thomas is distributed over Milin Co.and Cuona Co, southeast Tibet (Western, far at the river bend ofBrahmaputra River, Tibet). ( 2 ) Dremomys lokriah motuoensis Cai et Zhan is distributed over MotuoCo. southeast Tibet (West at the river bend of Brahmaputra River,Tibet).(3) Dremomys lokriah subflaviventris (Gray) is distributed over Zayul Co. Mishmi hills, and the Mt. Gaoligong, border between Burma and Yunnan, China.(4) Dremomys lokriah niclamuensis Li et Wang subsp. nov. is distributed over Nielamu, southern Tibet.(5) Dremomys lokriah subsp. is distributed over Bomi(Northeast at the river bend of Brahmaputra River, Tibet)This new subspecies is given as below.Dremomys lokriah nielamuensis subsp. nov.Holotype. No. BIZ ZHU-002, male (ad.), collected on April 16, 1974 from Nielamu (27°54/N., 85°54'E.), Xicang (Tibet). Alt. 2200m.Paratype. No. BIZ 0015, female (ad.), collected on May 8, 1966, from the same locality as Holotype. Alt. 1698m.Specimens examined. 7 males 4 females from the same locality as Holotype.Holotype is kept in Institute of Zoology, Academia sinica;Paratype is kept in Northwest Plateau Institute of Biology, Academia. sinica.Diagnosis. The subspecies is different from other ones by smaller size, Total length of the skull less 48 mm., by pale, much gray dorsal pelage (dorsal pelage mainly over olivaceous-gray), and by uniform pale yellow or orange ventral pelage.
关键词
橙腹长吻松鼠
亚种分类
新亚种
Dremomys lokriah, Subspecies classification, New subspecies
