Swamp-Rats of Last Africa. lol 



6'. Xa-sals very broad niiteriorly (more 



timn 8 niin. in wiiltli). 



fl^ Tniii>ilion Irom broiid to imirow 



ref^ioii luiirked by H distinct lui^^Ie. 



<i\ yizo larger; bnid foot 31 mm. 



in len^'th, greatest lengtli of 



akull 40 mm. (Kagambab, 



Uganda.) (12) rubeculua, sp. n. 



A\ Size :5iualler ; hind foot 2('y'<i mm. 

 in lengtb, |.'rfiitf.-«t lengtli of 

 skull ny mm. (Uombo, Kili- 

 manjaro.) (l."3) lUnnoriiin, Thoa. 



b'. No angular transition betwet-n 

 broad and narrow portions of 

 nazals. 

 «\ Size larger ; greate-st length of 

 skull 4U mm. or more. 

 «'. Cieneral colour brownish ru- 

 fous mixed with buflf. 



(M'Kombhuie, Angonilaud.) (14) an(jo]iiensiii,\\Yo\v^\\{. 

 //. General colour olive-grey 

 washed with brown. (Nai- 



vasha, 1J.E..\.) (lo) «. elassodon, Oa^. 



i'. Size smaller ; greatest leiiirth of 



skull less than 40 mm. Nasals 



very short. 



«'. Colour rufous brown speckled 



with bull". (N'yika Plateau, 



N. Nyasa.) (10) nyihaf Wrought. 



i'. Colour olive-grey tinted vith 

 buff. (Kijabe,Naivasha Dis- 

 trict, H.IC.A.) (17) M. cancscens, Usg. 



C. Lower incisors with two deep grooves. 

 Ventral surface of tail light. 

 a. Skull arched ; interorbital region raised 

 up ; nasals and brain-case depressed. 

 a . m' with laminse. (East lluweu- 



zori.) (18) dartmoiUhi, Thos, 



b'. m^ with 7 lamina3. 



«'•'. .'^ize smaller ; greatest length of 

 ekuU .'ii3-7 mm. CJeneral colour 

 blackish brown. (Mt, Elgon.). . (19) y<7c/i-*o«i', Thos. 

 b\ Sizo larger; greatest length of 

 ekuU 3lt-7 mm. CJenoral colour 

 bright yellowish butf suHused 

 with brown. (12 miles S. of 



Lake OlboUossat.) (20) pcrcicali, sp. n. 



c'. »n' with 8 laniinao. (Shoa, Abys- 

 sinia.) (21) typus, Ileug. 



h. Skull not arched ; m^ with 9 lamina;. 



(Charada, Kalla.) (22) fortiot; Thos. 



