摘要This study describes Rhabdophis shuichengensis sp.nov.a new species from Guizhou Province,China.This new species is distinguished from other congeners by the following characters:(1)medium-sized body(SVL of adult males:579-643 mm and adult females:530 mm);(2)uniformly grayish brown above,black line below eye and between last two labials absent;(3)dorsal scale rows of 15-15-15;(4)ventral scales of 154-158;(5)subcaudal scales of 43-56;(6)supralabials scales 6;(7)infralabials scales 8;(8)preoculars scales 1,postoculars scales 3,and supraocular scales 1;(9)temporal scales 1+2;(10)dorsal scales are keeled,with uppermost 5 rows feebly keeled;(11)abruptly enlarged,blade-shaped posterior two maxillary teeth,not preceded by a diastema and maxillary tooth count 20-22(18-20+2).The description of this new species brings the total number of described species of this genus to 35 and represents the 14th known Rhabdophis species in China.