Order Rodentia - Family Muridae 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 1189 1531 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Berylmys Ellerman 1947 Berylmys Ellerman 1947 , Proc. Zool. Soc. Lond., 1947-1948 (117): 261 . Type Species: Epimys manipulus Thomas 1916 Species and subspecies: 4 species: Species Berylmys berdmorei (Blyth 1851) Species Berylmys bowersi ( Anderson 1879 ) Species Berylmys mackenziei (Thomas 1916) Species Berylmys manipulus (Thomas 1916) Discussion: Rattus Division. Originally proposed as a subgenus of Rattus by Ellerman (1947 b ) for B. manipulus and B. berdmorei , but elevated to generic rank in a revision by Musser and Newcomb (1983) . They also recorded taxonomic history of names and groups associated with Berylmys , reported past evolutionary histories of species (centered in Indochina), and found that Berylmys was dentally similar to Niviventer , Maxomys , and Leopoldamys , but shared some derived cranial characters with Rattus and that phylogenetic relationships were still unknown. Sperm morphology united Berylmys with Sundamys , Rattus , and Leopoldamys ( Breed and Yong, 1986 ) , but that union was based on a shared spermatozoal form which is probably primitive. Analyses of microcomplement fixation of albumin ( Watts and Baverstock, 1994 a ) and DNA sequences from LINE-1 retrotransposons ( Usdin et al., 1995 ; Verneau et al., 1997 , 1998 ) placed Berylmus (represented by B. bowersi ) in a Rattus group, as did cladistic analysis of molar traits ( Chaimanee, 1998 ). Musser and Newcomb (1983) summarized chromosomal information; additional chromosomal data for Vietnam samples reported by Bulatova et al. (1992) .