Revealing hidden biodiversity: Novel insights on reptile and amphibian distribution in western Ecuador.

We present notable distributional updates for 14 species from western Ecuador (seven amphibians and seven reptiles). Our findings include the northernmost confirmed sighting of and the southernmost documented record of and . Additionally, we document new records and notes on the distribution range of , , , , , , , , , , and . These observations significantly contribute to filling information gaps in our understanding of these species' distributions. The data, derived from samples collected across diverse forested areas in the western region of Ecuador (provinces of Bolívar, Cañar, Guayas, El Oro, and Los Ríos), provide valuable insights into the ecology and conservation of these species.