188 On Mammals from the liiver Supinaam. 



In the above cliaracters the eiglit specimens are quite 

 uniform inter se, the only variation being in the general body- 

 colour, which varies considerably, though never so rich a 

 rufous as in CE. tapajinus or so pale as in CE. marmosurus. 



13. Xeacomys guiancp, Thos. 

 One. 



14. Loncheres chri/surus, Zimm. 



One. 



It is unfortunate that the unsuitable name chrysurus, based 

 on the " Lerot h. queue dor^e^' of Buffon, should antedate the 

 better known cristatus, but there can be no doubt as to its 

 tecimical applicability to this animal. 



The only previous examples of this rare animal that the 

 Museum has received are one from Sir R. Schomburgk and 

 one from Dr. Bovallius. An example of the nearly allied 

 but smaller L. paleacea, Illiger, of Para, has also been received 

 from the Para Museum. 



15. P roechimys cayennensis^ Desm. 

 Five. 



16. Dasyprocta ruhrata, Thos. 

 Three young. 



17. Bradypus tridactylus, L. 



One. 



Two. 



Three. 



One. 



Two. 



One. 



One. 



18. Choice pus didactyluSf L. 

 19. Tamandua tetradactyla, L. 



20. Cyclopes didactylusj L, 



21. Didelphis marsupialis, L. 



22. Meiachirus opossum, L. 



23. Meiachirus nudicaudatus, Geoff. 



