Xenopholis scalaris (Wucherer, 1861)

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 : 746

Xenopholis scalaris (Wucherer, 1861)

Material examined. ECUADOR • 1 juvenile; Napo Province, WWS, F.A.C.E. Trail; 00.6801°S, 077.6001°W; 1406 m a.s.l.; 10 Aug. 2019; QCAZ 17540 .

Identification. These small snakes are unique in hav- ing prefrontal scales fused into a single scute. The dor- sal pattern consists of 24–30 cross-shaped markings on a reddish-brown to pinkish-orange ground color. The lo- real scale is longer than wide, the cloacal plate is undi- vided, and there are 28–36 subcaudals ( Torres-Carvajal et al. 2020).

Remarks. Our record represents both a 164 km range ex- tension to the west-southwest and a new record for Napo Province ( Torres-Carvajal et al. 2020).