1.	Body unpatterned	2
–	Body patterned	4
2.	Midbody scale rows fewer than 50, ventrals fewer than 300	Liasis fuscus
–	Midbody scale rows more than 50, ventrals more than 300	3
3.	Midbody scale rows 61–72, 355–377 ventrals	Liasis olivaceus olivaceus
–	Midbody scale rows 58–63, 374–411 ventrals	Liasis olivaceus barroni
4.	Eyes pale or white	Liasis mackloti savuensis
–	Eyes silvery or dark	5
5.	Chin and infralabials yellowish of color, brownish ground color, females larger than male	Liasis mackloti mackloti
–	Chin and infralabials of white color, grayish to reddish-brown ground color, males larger than females	Liasis mackloti dunni