Head and neck:
Head short and blunt, distinct from neck; large eyes; vertical pupils; head black; labials yellow with black borders.
Body:
large, robust, and laterally compressed body; dorsal greyish black with 35 to 45 narrow yellow bands with black borders around the body and 10 on tail; ventral grey; midbody scale rows 21; ventrals 209-253, subcaudals 80, divided; 110 cm SVL.