Geoxus valdivianus (Philippi 1858) [Oxymycterus] valdivianus Philippi 1858, Arch. Naturgesch., 24 (1): 303. Type Locality: Chile, Valdivia Prov. Vernacular Names: Valdivian Long-clawed Akodont. Synonyms: Geoxus araucanus (Osgood 1925); Geoxus bicolor (Osgood 1943); Geoxus bullocki (Osgood 1943); Geoxus chiloensis (Osgood 1925); Geoxus fossor Thomas 1919; Geoxus michaelseni (Matschie 1898); Geoxus microtis (J. A. Allen 1903). Distribution: C and S Chile (see Saavedra and Simonetti, 2001, for northern range extension), including Mocha and Chiloe Isls, to Straits of Magellan, and S Argentina (Neuquén to Santa Cruz Provs.). Conservation: IUCN – Lower Risk (lc). Discussion: Pearson (1984) noted the uncertainty of the generic association and specific status of michaelseni, which has been arranged as a subspecies (Osgood, 1943; Patterson, 1992 b) or later listed as species (Reig, 1987). The taxon’s status and relationship clearly merit further study. Subspecific distributions in Chile sketched by Muñoz Pedreros (2000).

Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, pp. 955-1189 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore :The Johns Hopkins University Press on page 1116, DOI: 10.5281/zenodo.7316535