Table 5: Grade Evidence of Venomous Snakes Distribution in the Research Region.

Viper species	Toxicity	City of Liuzhou	Liujiang County	Luzhai County	Liucheng County	Xiangzhou County
		I II III	I II III	I II III	I II III	I II III
Proteroglyphic tooth
Naja atra	Highly toxic	√ √ √	√ √ √	√ √ √	√ √ √	√ √ √
Oph- hannah	Highly toxic	√ √ √	√ √	√ √	√ √	√
Bun- fasciatus	Highly toxic	√ √	√	√ √ √	√ √	√
Bun- multicinctus	Highly toxic	√ √ √	√ √ √	√ √ √	√ √ √	√ √ √
Sin-macclellandi	Highly toxic		√	√		√
Solenoglyphic tooth
Azemiops Kharini	Highly toxic		√	√
Dei-acutus	Highly toxic			√ √
Ovophis monticola	Highly toxic	√	√	√ √	√	√ √
P-mucrosquamatus	Highly toxic	√ √ √	√ √ √	√ √ √	√ √ √	√ √ √
Tri-lbolabris	Highly toxic	√ √	√ √	√	√ √ √	√ √
Vir-stejnegeri	Highly toxic	√	√ √	√ √	√	√
Daboia siamensis	Highly toxic			√ √		√ √
Duvernoy's gland
Rha-subminiatus	Highly toxic	√ √ √	√ √	√	√	√
Rha-tigrinus	Highly toxic		√	√		√
Opisthoglyphic tooth
Achaetulla prasina	Low toxic	√	√ √	√	√	√
Boi-multomaculata	Low toxic	√ √	√ √	√
Boiga kraepelini	Low toxic			√
Myr-chinensis	Low toxic	√ √ √	√ √	√ √	√ √	√ √
Hyp- plumbea	Low toxic	√	√	√	√	√
Psa- pulverulentus	Low toxic	√	√ √	√	√	√
Total		14	17	20	13	16