the Asiatic Bamboo- Rats. 57 



of X^/rtocIejites, and the tliircl of a new genus now described. 

 The chief characters of these three genera are as follows : — 



1. Nyctocleptes, Tenim. 



Size verj large. Palm and sole-pads low, hardly raised 

 above the general surface, granulated, the two posterior sole- 

 pads conjoined. Mammce 2 — 3 — 10. 



Anteorbital foramina oval or circular. Posterior nares 

 well open, often nearly as wide as high. 



Set of incisors intermediate between that found in the other 

 two genera. M^ about the size of v/i^, not or rarely worn to 

 a lower level. 



Range. Burma, Malay Peninsula, and Sumatra. 



Type. Nyctocleptes sumatreyisis [Nyctocleptes dekan, 

 Temm.). Other species cinereiis, McCl. (including erytkro- 

 genys, Anders.), and insularis, sp. n. {infra). 



2. RlilZOMYS, Gray. 



Size rather less than in Nyctocleptes. Palm and sole-pads 

 distinct, gianulated, the two posterior sole-pads separated, 

 though enlarged. Mamnue normally 1 — 3 = 8, though 

 occasionally a minute anterior pectoral pair, not functional 

 in any specimen examined, may be present. 



Anteorbital foramina subtriangular. Posterior nares con- 

 tracted, much higher than broad. 



Incisors forming a segment of a comparatively small circle, 

 their points directed backwards. M^ decidedly smaller at all 

 ages than m^, and worn in adults much below the level of 

 the latter. 



Range. Assam, Burma, and Siani to South China. 



Type. R. sinensis, Gray. Other species, vestitus, M.-Edw,, 

 davidi, Thos., pruinosus, Biyth, latouchei and pannosus, 

 spp. nn. (in/ra). 



3. Cannomys *, gen. no v. 



Size comparatively small. Palm and sole-pads normal, 



well defined, not granulated. Mamniffi 2 — 2 = S. 



Anteorbital foramina and posterior nares much as in 

 Rhizomys. 



■=* From Kavva, cane or bamboo. Whjle searchinj^ for a suitable name 

 for this animal, I have noticed that the term Mijoiyctes, ^^xwQn to a fossil 

 Madagascan rodent by Dr. Forsyth Major (Geol. Mag. (5) v. p. 97, 1908), 

 is preoccupied by Eberth (Zeitsclir. Wiss. Zool. xii. p, 530, 18G3) 

 {Myoryktes, quoted as Myoryctcs by Scudder, ' Nomenclatoi-,' p. 204, 

 1882). 1 would suggest renaming the Malagasy genus Majoria, alter its 

 distinsfuished discoverer aud describer. 



