摘要
巨蜥是世界上现存的一类最大的蜥蜴，隶爬行纲巨蜥科Ｖａｒａｎｉｄａｅ，仅１科１属（Ｖａｒａｎｕｓ）约３６种，分布于澳洲、亚洲南部和非洲。中国历来记载仅有一种———Ｖ．ｓａｌｖａｔｏｒ。然而，调查表明在云南边境地区实际分布着３种巨蜥，除Ｖ．ｓａｌｖａｔｏｒ外，尚有Ｖ．ｉｒｒａｗａｄｉｃｕｓ和Ｖ．ｖｉｅｔｎａｍｅｎｓｉｓ。本文讨论了这３种巨蜥的有效性，简要地报道了它们的生境、习性和生存现状。
otal three varanid species and their distributions in Yunnan were recognized during the expeditions resent years,they were V.salvator (Laurenti),V.irrawadicus (Yang) and V.vietnamensis (Yang).V.salvator is widely distributed in Yunnan border area,from the western to the southwestern,then to the southeastern;V.irrawadicus is only discovered in Yingjiang and Longchuan Counties in west Yunnan;and V.vietnamensis is acquainted to be distributed in Mengla,Xishuanbanna in southwest Yunnan,and the Chinese Vietnam borer and the Chinese Laos border.After comparison with other related species of the Southeastern Asia,we think that the three varanid species of Yunnan are all valid,though V.irrawadicus was considered as a synonym of V.bengalensis by Auffenberg,it is different from the latter in the position of nose,color pattern on neck and body,and ventral rows;V.vietnamensis has transversly enlarged upper ocullars so it differs from V.flavescens (no enlarged upper ocullars),also it has middle way positioned nose that is different with V.nebulosus,V.nebulosus should be a valid species while not a subspecies of V.bengalensis since it has transversly enlarged upper oculars that V.bengalensis has not (others:V.monitor is not a valid name).Finally in this paper,the habitats,habits and conservation of varanid lizards of Yunnan are preliminary reported.
出处
《生物多样性》
CAS
CSCD
1996年第4期194-200,共7页
Biodiversity Science
基金
国际野生动物保护学会(麦克阿瑟基金会)
青年野外考察基金
关键词
巨蜥属
物种多样性
生境
习性
云南
Varanus,specific diversity,classification,distribution,habitats,habits,conservation,Yunnan
