Can be diagnosed by having a distinctive rectangular unpigmented area on the snout and ethmoid region anterior to the nares, five to seven prominent dark saddles traversing the dorsum and confluent with dark, oblique lateral bars that are expanded ventrally, a disassociated basicaudal bar, an incomplete lateral line, no suborbital flap in males, and a weakly-developed processus dentiformis (Ref. 93052).