Taxa;"Dorsum color";"Dorsum stripe";"Postorbital stripe color";"Postorbital stripe width"
"G. s. qianshanensis";"Light gray";"Dark gray X-shaped pattern";Black;"PSW is smaller than ED but greater than half of ED"
"G. s. shedaoensis";"Light gray";"Dark gray X-shaped pattern";Black;"PSW smaller than or approximately equal to half of ED"
"G. intermedius";"Brownish red or dark brown";"Dark and light cross striations";"Dark brown or brown";"PSW approximately equal to ED"
"G. changdaoensis";"Brownish red or dark brown";"Round spots with a light middle color and dark edge color on the lateral body";"Dark brown or brown";"PSW approximately equal to ED"