On neio West- African Rodents. 257 



wkle, tlie width equalling the united length (of the uncovered 

 parts) of tergites 1-11. Posterior angle of the lateral mar- 

 gins of the tergites slightly produced ; the uncovered part of 

 them furnished with very numerous minute scales, which are 

 circular in shape and are not in contact with one another; 

 the greater part of the last tergite is concealed by the pen- 

 ultimate one. Outer part of the posterior edge of the pleural 

 plates fringed with hair. Antenna consisting of eight seg- 

 ments, all of which are very short, the distal one being very 

 minute. 



Length of body 4"25, its width 3 mm. 



Remarks. This species can easily be distinguished from the 

 two species already described by the shape of the body and 

 of the scales of the uncovered part of the tergites. 



XXIX. — New West-African Rodents. 

 By Guy Dollman. 



(Published by permission of the Trustees of the British Museum.) 



Anomalui'ns imperator, sp. n. 



Related to AnomaJurus fraseri, Waterh. ; in general 

 appearance rather similar to A. fraseri nigrensis, Thos., but 

 without the dark ocular and occipital markings, and with 

 shoulders and flanks strongly tinged with buff. 



Size and general proportions as in fraseri. General 

 colour of back olive-brown washed with buff, the buff tint 

 most evident on the flanks, hind-quarters, and shoulders, in 

 the latter region ajtpearing as bright orange-buff-coloured 

 areas. Hairs of back with slate-black bases and bufBy sub- 

 terminal rings; extreme tips brownish. Head and face 

 ashy grey, the grey colour washed with buff on the posterior 

 part of head. No dark markings on sides of face or around 

 eyes. Dark hairs at base of ears brownish black, forming 

 prominent tufts at insertion of ears, but not spreading on to 

 the head as dark occipital markings such as occur in A. f. 

 nigrensis. Sides of face ashy grey ; hairs with greyish- 

 white bases, darkening to pale brownish towards the tips, 

 extreme tips yellowish white. Light buff-coloured areas on 

 sides of neck, beneath ears, ill-defined, not nearly so pro- 

 minent as in nigrensis. Backs of hands and feet dark 

 brownish speckled with grey ; claws clothed with long stiff 



Ann. & Mag. N. Hist. Ser. 8. Vol. viii. 17 



