... The phylogenetic relationships within 13 species ( N. andersoni, N. excelsior, N. eha, N. brahma, N. culturatus, N. coninga, N. rapit, N. niviventer, N. confucianus, N. tenaster, N. fulvescens, N. langbianis and N. cremoriventer ) were investigated based on a full set of cytochrome b sequences and the cytochrome coxidase subunit I genes that are currently available. The full species rank for N. huang and N. bukit , which previously were regarded as forms of N. fulvescens , was approved. ...