490 Mr. R. C. Wrougliton on 



(17) Tatera nyasa, sp. n. 



5. 2. 2. 10-13. Deep Bay, Lake Nyasa, B. C. A. {Sir H. 

 Johnston). 



97.10.1.87-92. Fort Hill, Nyasa, B. C. A. {Sir H. 

 Johnston). 



97.10.1.96-99. Karouga, Nyasa, B. C. A. [Sir H. 

 Johnston) . 



3. 4. 2. 7-8. Luaiigwa, Nyasa, B. C. A. [Sir H. John- 

 ston) . 



Tlicre would seem to be two forms among these spenimeiis 

 — the one I have chosen to represent the type, with a lighter 

 narrower skull and small bullae, and the other (including the 

 Fort Hdl (?) and Luangwa specimens) with a coarser broader 

 skull and large bullse. I have only fragments of skulls of 

 the Fort Hill specimens and only a broken one of a very 

 old individual from Luangwa, and under the circumstances 

 do not ventui'e to differentiate them. 



Tatera nyasa in body-measnrements differs but little from 

 shirensis, but tlie black shading of this latter species is almost 

 absent in nyasae, which also has a much brighter tone of 

 " sandy " as a ground-colour. 



The dimensions are (body-measurements are given 

 approximately) : — 



Head and body 150 mm. ; tail 150 ; hind foot 32 ; ear 20. 



Skull : greatest length 37 ; basilar length 29 ; zygomatic 

 breadth IH; length of upper molar series 6; bullae 9'5. 



Hub. Deep Bav, Nyasa, B. C. A. Alt. 7500'. 



Type. B.M. no'. 5. 2. 2. 10. An adult male. Collected by 

 Mr. AVhyte in April 1903, and presented to the Museum by 

 Sir H. Johnston. 



(18) Tatera nyasce shirensis, subsp. n. 



97. 10. 1. 100-103. Mt. Malosa {Sir H. Johnston). Alt. 

 5300-G300'. 



93. 5. 2. 13-14. Fort Johnston, Upper Shire {Sir H. 

 Joiiiiston). 



The whole of the material from Nyasaland is unfortunately 

 in poor condition ; dimensions were not recorded by the 

 collector, and the skulls are much broken. The two specimens 

 from Upper Shire are indistinguishable from the seiies from 

 INIt. ]\lalosa externally, but the skulls of the former are 

 markedly broader, stouter, and have larger bullae. With the 

 material available I do not venture to separate thera even as 

 subspecies. There arc, however, from Nyasa two well-marked 



