Amphibians and reptiles of Wildsumaco Wildlife Sanctuary, Napo Province, Ecuador Author Camper, Jeffrey D. Author Torres-Carvajal, Omar Author Ron, Santiago R. Author Nilsson, Jonas Author Arteaga, Alejandro Author Knowles, Travis W. Author Arbogast, Brian S. text Check List 2021 2021-05-10 17 3 729 751 http://dx.doi.org/10.15560/17.3.729 journal article 10.15560/17.3.729 1809-127X 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 ).