Atractus major Boulenger, 1894

Camper, Jeffrey D., Torres-Carvajal, Omar, Ron, Santiago R., Nilsson, Jonas, Arteaga, Alejandro, Knowles, Travis W. & Arbogast, Brian S., 2021, Amphibians and reptiles of Wildsumaco Wildlife Sanctuary, Napo Province, Ecuador, Check List 17 (3), pp. 729-751 : 743

Atractus major Boulenger, 1894

Material examined. ECUADOR • 1 adult; Napo Prov- ince, WBS; 00.6715°S, 077.5986°W; 1530 m a.s.l.; 26 July 2012; QCAZ 5071 • 1 adult; Napo Province, dead on road about 3 km downslope of Pacto Sumaco ; 31 July 2012; QCAZ 5074 .

Identification. This snake has a reddish-brown dorsum with dark brown bands edged with light brown. There are 17-17-17 dorsal scale rows, 7 or 8 supralabial scales, with the third the largest, and 5–7 infralabials. The lo- real scale is 2.5–3 times as long as it is high, the frontal scale is slightly triangular, there are 1+2 temporal scales, and the cloacal plate is undivided. This species has 6 or 7 maxillary teeth, 157–181 ventrals in females and 148– 172 in males, and subcaudals number 27–37 in females and 31–49 in males.

Habitat. This species was found in secondary forest and in pasture indicating a tolerance for disturbed habitats.