亚洲蝮亚科蛇属间系统发生支序分析 (蛇亚目：蝰科)

在大量比较形态研究的基础上，选择了５个特征方面２８个性状，以支序分析方法探讨了分布于亚洲蝮亚科蛇５属１４种的系统发生关系，结果表明：该亚科蛇类可以划分为３个不同的类群，第一个类群包括尖吻蝮属、瘤鼻蝮属、红口腹属，它们具有较多的祖征，代表了该科中原始一类，基中红口蝮可能是最原始的一属；亚洲蝮属单独形成一个类群；第三个类群为原广义的烙铁头蛇属，包括竹叶青蛇属、原矛蝮属、烙铁头蛇属、黑绿烙铁头蛇属、莽山

Cladistic Analysis of the Phylogenetic Relationships among the Crotalinae Genera in Asia（Serpentes ：Viperidae）

characters of 5 aspects, such as external feature, skull, cranial muscles, hemipenis and reproduction, are selected for comparing the phylogenetic relationships among 9 genera, 14 species of Asia crotalinae by a cladistic approach. The results indicate that the crotalinae snakes can be divided into three groups. The first group includes Deinagkistrodon, Hypnale,Calloselasma , representing probably the primitive genera with much more plesiomorphic characters.In this group, Calloselasma is most primitive genus in the subfamily. The second group is only Gloydius. Trimeresurus (sensu lato ), including Ermia, Trimeresurus(sensu stricto),Ovophis,Protobothrops and Tropidolaemus ,constitute the third group. Ermia and Tropidolaemus are sister groups, exhibiting many derivered characters, so they are higher genera. The species currently included in Trimeresurus (sensu stricto ) do not form a natural group. It is yet unclear whether they are monophyly or not, hence their taxonomic relationship needs further study.