*CSIRO Division of Plant Industry, P.O. Box 1600, Canberra City, ACT 2601, Australia; and Biology Department, National University, Roma, Lesotho.
A chromosomal and morphometric study of Papuan tree rats Pogonomys and Chiruromys (Rodentia, Muridae)
Article first published online: 20 AUG 2009
Journal of Zoology
Volume 189, Issue 3, pages 315–332, November 1979
How to Cite
Dennis, E. and Menzies, J. I. (1979), A chromosomal and morphometric study of Papuan tree rats Pogonomys and Chiruromys (Rodentia, Muridae). Journal of Zoology, 189: 315–332. doi: 10.1111/j.1469-7998.1979.tb03965.x
- Issue published online: 20 AUG 2009
- Article first published online: 20 AUG 2009
- Accepted 13 February 1979
Material representing the nine currently recognized species of Pogonomys and its subgenus Chiruromys was subjected to a programme of canonical correlation analysis. Results indicated that six of these species were distinct while two other groups merited subspecific rank. The holotype of another species, P. mollipilosus, appeared to bear little relation to the widespread montane rats with which it has customarily been associated and is now included in the synonomy of a lowland species, P. macrourus. Computer analysis did not suggest any close relationship between Chiruromys and Pogonomys and Chiruromys is now regarded as a separate genus. Examination of the chromosomes confirms that the division into two genera is valid and, while the karyotype of one could be derived from the other it could just as easily be derived from an independent ancestor. Therefore we postulate an independent origin for Chiruromys and Pogonomys.