Abstract
Illumination of species diversity and their distribution is key to
evolution, genetics and conservation. The genus of Sibynophis is
a group of rare snakes with less attentions. Based on more extensive
sampling, we use both mitochondrial fragments and nuclear gene to
explore the species diversity of the species of Sibynophisoccurring in China. The results showed that S. c. miyiensis is a
synonym of S. c. grahami , and S. c. grahami should be gave
a specific rank as S. graham . Sibynophistriangularis was uncovered to be new to China and Myanmar. On
basis of our specimens and molecular phylogeny results, the species
distribution boundaries of each Chinese species were redefined.