150 



Mr. G. Dollnian 07i the 



b. jn' with G lamiuoe. (Mt. Mikeno, Congo 



Beige.) 



B. Lower incisors witli one cleop outer groove 

 and one very slmllow inner groove. 

 Ventral surface of tail light. 

 a. Skull of arched appearance, inter- 

 orbital region rai>ed up and nasals and 

 brain-case markedly depressed. 

 a'. ?«' with 7 laniinne. 



a^. Size larger; bind foot 30 mm. in 



length. (Molo, B.E.A.) 



b^. Size smaller ; hind foot less than 

 30 mm. in length. 

 a^. Colour of dorsal surface pale 

 ocbrenus buft". (Lake Olboll- 



ossat, B.E.A.) 



b^. Colour of dorsal surface brown- 

 ish buff. (Aberdare Mts., 



B.E.A.) 



b'. Mj' with 6 laminae. 



a*. Colour of dorsal surface brownish 

 buff. Size of molars larger (al- 

 veolar length 9'1 mm.). (Teliki 



Valley, Mt. Kenya, B.E.A.) 



b^. Colour of dorsal surface dark 

 tawny olive. Size of molars 

 smaller (alveolar length 8*1 mm.). 



(.Mt. Gargues, B.E.A.) 



b. Skull without any marked elevation of 

 the interorbital region ; general line 

 of brain-case nearly horizontal ante- 

 riorly, m^ with 7 laminre. 

 a'. Nasals not exceptionally broad ante- 

 riorly (not more than 8 mm. in 

 width). 

 a^. Transition from broad to narrow 

 portion of nasals marked by a 

 distinct angle. 

 a^. Size larger; hind foot 27 mm. 

 or mors in length, greatest 

 length of skull 40 mm. or more. 

 a*. Iiindfoot28-30mm. in length. 

 Colour rich russet-brown. 

 (West slope, Mt. Kenya.) . . 

 b*. Hind foot 27 mm. in lengrth. 

 Colour dark sepia-brown. 

 (Elgonyi, Mt. Elgon.) .... 

 b^. Size smaller; hind foot 26 mm. 

 in length. Greatest length of 

 skull less than 40 mm. (Mt. 

 Nyiro, S. of Lake Budolf.) . . 

 i*. No angular transition between 

 broad and narrow portion of 

 nas'als. General colour very dark, 

 (.lombeni Bange, N.E. of Mt. 

 Kenya, B.E.A.) 



(•2) lempi, sp. n. 



(3) tJiomasi, Osg. 



(4) t. malleus, subsp. n. 



(5) t. sqtialus, subsp. n. 



(G) orestcs, Thos. 

 (7) 0. dulbnani, Hell. 



(8) tropicalis, Thos. 



(9) t. elyonis, Wrought. 



(10) t. vivax, subsp. n. 



(11) t. nulilus, subsp. n. 



