秦岭蝮和六盘山蝮分类地位的初步探究

秦岭蝮（Gloydius qinlingensis）和六盘山蝮（G.liupanensis）的鼻间鳞形状和斑纹与高原蝮（G.strauchii）相似,鳞片变化范围也有很大重合,但它们的分类地位尚有争议.作者对六盘山蝮和秦岭蝮的鳞片（背鳞、腹鳞和尾下鳞）数据做了统计学分析,并和高原蝮的数据比较.运用75%法则,秦岭蝮和高原蝮之间背鳞和尾下鳞多数数据的差异系数大于1.28,而六盘山蝮和高原蝮之间小于1.28.作者初步认为秦岭蝮应该是高原蝮的一个亚种,而六盘山蝮是高原蝮的一个北方居群.

A Preliminary Taxonomic Status of Gloydius qinlingensis and G.liupanensis

In consideration of the shape of internasal scale,the overlapping range of scale counts of dorsals,ventrals and subcaudals,and in addition to the similarity of color and pattern of the crotalid species Gloydius qinlingensis and G.liupanensis in comparison with G.strauchi,there exists an opinion that the former two species may be synonymous of the last one.Under this circumstance,for the reason to clarify this problem,the authors check the scale counts of dorsals,ventrals,and subcaudals by 75% principle.The results showed the coefficient of differences between G.qinlingensis and G.strauchi is greater than 1.28 in ventrals and subcaudals,but between G.liupanensis and G.strauchi is less than 1.28,and among the 3 species(subspecies)is no than 1.28 in middorsals. Based on this,the authors consider that G.qinlingensis is a subspecies of G.strauchi,and G.liupanensis is a northern population of the latter.A key to subspecies of G.strauchi is given.