And to be even further pedantic: Yeah this is a proper fuckup. Wells describes them as having a myriad of extra limbs and stuff but only specifically three actual limbs. He also hated representations of them that had stiff or jointed legs; it was before the time of sci-fi with "biomechanical" as a concept but that appears to be his intention for the Tripods' construction; although they don't really adhere to the Tripod design overall, the Striders in Half-Life 2, in terms of their biomechanical synthetic construction, appear to adhere more to what Wells would describe the tripods as.