关键词: 蝙蝠科, 核型, 伏翼属, 鼠耳蝠属, 山蝠, 南蝠

Abstract: The karyotypes of seven species of vespertilionidae bats were reported in the paper. Pipistrellus pipistrellus and P.coromandra have diploid chromosome number (2n) of 26, in which the autosomes consist of 10 pairs of biarmed chromosomes, 2 pairs of small uniarmed ones , and a fundamental number (N.F) of 44. The main difference between P. pipistrellus and P. coromandra is that No. 3 of the former is metacentric while the latter is submetacentric. Myoti myoti luctuosuss , M. daubenttoni and M. altarium all have 2n = 44 , including 4 pairs of metacentric chromosomes , 17 pairs of telocentric ones and 1 pair of sex ones, and their N.F are all 50. The karyotypes of Myotis myotis luctuosuss and M. daubenttoni are alike and are different from that of
M. altarium. Nyctalus noctula velutinus has 2n = 36 , comsisting of 7 pairs of metacentric chromosomes , 1 pair of submetacentric ones , 9 pairs of telocentric ones , and 1 pair of sex onces , and N.F = 50. Ia io has 2n = 50 , including 24 pairs of telocentric chromosomes , and 1 pair of sex ones in which X is the largest metacentric chromosomes , and N.F = 48.

Key words: Vespertilionidae, Karyotype, Pipistrellus, Myotis, Nyctalus noctula velutinus, Ia io