638 Mr. Pt. C. Wrouglitou on the 



Basilar 



Hind length of Length of 



foot. skull. tooth-row. Bullae. 



(Type) 95. 11. 3. 25. c?. Old.. 20 22 4-4 6-5 



95.11.3.26. S. V.old. 20 22-3 44 5-5 



95.11.3.27. d-Y. adult. 20 21 4-4 5-5 

 1117. d. V.old .... 20 22-5 4-4 5-5 



1135. cJ. Adult 20 21-5 4-4 5-5 



1140. ?. Old 20 21-5 4-4 5-5 



98.4.4.22. 6- V.old. 20 22-5 4-4 55 



Arvicanthis pumilio diminutus. 

 Isomys 2n(milio diminutus, Tho3. P. Z. S. 1892, p. 551. 



93. 2. 3. 39, 40. Mianzini, Masailand. 



99. 8. 4. 85-88. Ravine Station, B.E.A. 



The normal dimensions are : — 



Head and bodj 94 mm. ; tail 62 ; hind foot 20. 



Skull : basilar length 23*5 ; tooth-row 4*5 ; buUffl 5*5. 



The coloration, as shown by the half-dozen specimens, is 

 very constant, showing a bright golden tinge throughout the 

 dorsal ground-colour and bright, almost white, interspaces 

 between the dorsal stripes. 



Though not markedly larger than dilectus in any one 

 dimension, it is distinctly though slightly larger all round. 

 The following are some actual measurements : — 



Basilar 



Hind length of Length of 



foot. skull. tooth-row. Bullaa. 



93. 2. 3. 39. ? Old 20 23 4-5 5-5 



99.8.4.35. tS- Old 20 23-5 4-5 5-5 



99. 8. 4. 85. $ . Y. adult .... 20 20 4-5 5-5 



Arvicanthis pumilio Moshesh, sp. n. 



4. 12. 5. 48-51. Maseru, Basutoland. Alt. 5000'. 



4. 9. 1. 59, 60. Zuurbron, Transvaal. Alt. 4600'. 



4. 9. 1. 63, 68. Wakkerstroom, Transvaal. Alt. 6000'. 



98. 3. 23. 7. Potchefstroora, Transvaal. 



97. 8. 5. 7. Krugersdorp, Transvaal. Alt. 4900'. 



4. 5. 1. 69, 74. Sibudeni, Zululand. Alt. 3500'. 



This is a form with very small bullae, wiiich seems to have 

 its habitat in the country along the crest of the Drakensberg. 

 At Krugersdorp it appears to meet dilectus^ the form of the 

 N.W. Transvaal &c., and at Wakkerstroom and Sibudeni 

 the below Berg form {Chakce). Whether it is or is not 

 found immediately northwards, however, there is unfortu- 

 nately no evidence to show ; a very similar form has been 



