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In this study,we intended to construct an ethogram of the toad-headed lizard Phrynocephalus vlangalii by classifying and describing its behaviors using the Posture-act-environment(PAE)method.Through direct field observation and video recording,we obtained eight postures,sixty-two acts and ten environments,and thus we formed an ethogram consisting of eighty-three behaviors encoded with PAE.A complete ethogram for a species could provide systematic behavioral information which helps to understand the connections among related behaviors and provides background information for specific behavioral study,hence the present ethogram will be greatly useful for future behavioral studies on P.vlangalii as well as other Phrynocephalus species.