快步麻蜥的核型观察

快步麻蜥（Ｅｒｅｍｉａｓｖｅｌｏｓ）隶属蜥蜴科麻蜥属，在我国分布于内蒙、宁夏、甘肃和 新疆，在国外多分布于前苏联、土耳其等地。本文以骨髓和精巢为材料，观察分析了快步麻晰的核型，结果表明，快步麻晰的染色体数２ｎ＝３８，ＮＦ＝３８，核型公式为：２ｎ＝３６Ｉ＋２ｍ，精母细胞减数分裂中期Ｉ中二阶体为１９条，与体细胞有丝分裂情况相符，雌雄个体均无明显型性染色体，与同属的虫纹麻蜥比较快步麻蜥属于比较原始的种类

An Observation of the Karyotype of Eremias velox

Living in northwest China, Eremias velox is a kind of Lacertidae in theEremias famiIy. In this study, the author observed and analysed the Karyotype of Eremiasvelox with marrow and 3permary as examined material and found that the number of chromosome is 2n = 38, NF = 38, the Karytype is 2n = 36I + 2m, I = 19 in the meiosis of spermatophore which conforms to the rnitosis of the body cell, and neither the male nor the female has abnormal chromosome.Compared with E. vemiculata in the same family, Eremias velox is a more primitive kindof Lizard. This observation makes it possible to study the evolution of chromosome and therelation of the growth of chromosome system.