Order Rodentia - Family Nesomyidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 930 955 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Gymnuromys roberti Major 1896 Gymnuromys roberti Major 1896 , Ann. Mag. Nat. Hist., ser. 6, 18: 324 . Type Locality: Madagascar , Fianarantsoa Prov. , Ampitambe forest. Vernacular Names: Voalavoanala . Distribution: E Madagascar humid forest, 500-1625 m , from the Northern Highlands, along the eastern flank of the central highlands, to the southern limits of the Anosyenne Mountains. Conservation: IUCN – Vulnerable. Discussion: Some have voiced concern that populations of G. roberti are being supplanted by introduced Rattus (see Carleton and Schmidt, 1990 ; Goodman, 1995 ).