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 Cricetomys Waterhouse 1840 Cricetomys Waterhouse 1840 , Proc. Zool. Soc. Lond., 1840: 2 . Type Species: Cricetomys gambianus Waterhouse 1840 Species and subspecies: 4 species: Species Cricetomys ansorgei Thomas 1904 Species Cricetomys emini Wroughton 1910 Species Cricetomys gambianus Waterhouse 1840 Species Cricetomys kivuensis Lönnberg 1917 Discussion: Cricetomyini. Six nominal species were recognized (e.g., Allen, 1939 ) before Ellerman (1941) summarily reduced all to subspecies of C. gambianus . Genest-Villard’s (1967) revision provided evidence of two kinds, a predominantly savanna-dwelling species ( C. gambianus ) and a lowland forest form ( C. emini ), an arrangement broadly compatible with Hinton’s (1919b) perception of harsh-furred and sleek-furred groups. Her character states and univariate ratios for discriminating two species are generally workable in West Africa but break down in eastern and southern Africa; based on series in MCZ and USNM , four kinds of Cricetomys can be morphologically sorted. For studies of the gastrointestinal tract interpreted in the context of taxonomic comparisons, trophic niche, and digestive function see Knight and Knight-Eloff (1987) and Perrin and Curtis (1980) .