Riveros-Riffo, Edvin ， Gonzalez-Pinilla, Francisco J. ， Palma, R. Eduardo
2026-03-26 MAMMALIA 2026 90(卷), 2(期), (148-153页)
Bennett's chinchilla rat (Abrocoma bennettii) is an hystricomorph rodent endemic to Chile inhabiting semi-arid and meditarranean regions below 2,000 m above sea level, from northern and central Chile. Using various lines of evidence, including camera traps, skulls, middens, and DNA, this study reports two new records of A. bennettii discovered during the course of a baseline fauna survey. These new records expand their current altitudinal limit up to 3,500 m above sea level and reveal an unprecedented potential sympatry with Abrocoma cinerea in the Andes of the Atacama Region, highlighting the ecological versatility of this common yet elusive rodent.