272 Mr. R. C. Wrougliton on 



(7) Otomys irroratus. 

 Otomys irroratus, Brantf, Muiz. 1827, p. 94. 



95. 9. 3. 9. Rondebosch, Cape Town. 



3. 7. 2. 18-2 1. Tokai, Cape Town. Alt. sea-level to 600'. 

 5.5.7. 59-G5. Kuvsnaj C.C. (lludd Exploration.) Alt. 

 1400-1500'. 



97. 11. 5. 23-25. Grabamstown, C.C. 



98. 10. 8. 9-10. King William's Town, C.C. 



3. 6. 2. 12. Port St. Jolin, Pondoland. 



4.6.6.6-11. Notinsila, Pondoland. Alt. 2300'. 



94. 6. 29. 2 ; 4. 8. 31. 6. Ziiluland. Alt. 3000'. 



49. 4. 13. 6. Durban, Natal. 



4. 12. 5. 18-19. Estcourt, Natal. Alt. 4500^. 



4.12.5.41-42. Maseru, Basutoland. Alt. 5000'. 



4.9.1.43-44. Wakkerstroora, Transvaal. Alt. 5900'. 



4.9.1.45-47. Zuurbronu, Transvaal. Alt. 4400-4700'. 



96. 3. 30. 5. Rustenberg, Transvaal. Alt. 4900'. 



97. 8. 51-2. Krugersdorp, Transvaal. Alt. 4700'. 

 4.4.8.10-14; 4.10.1.30-31, 59, 60, 92. Kuruman, 



Bechuanaland. Alt. 4000'. 



98. 3. 23. 3-4. Potchef stroom, Transvaal. 



Brants' description is a long one, but does not furnisli any 

 strikingly cliaracteristic characters, and gives no type locality. 

 The upper incisors have one deep groove towards the outer 

 edge and a shallow inner one, and the lower incisors one 

 deep groove. The dimensions given are : — Head and body 

 222 mm., tail 100. Allowing for the exaggerated measure- 

 ments (according to tbe method of taking these measurements 

 at the present day) of the head and body, the following may 

 be taken as normal dimensions of irroratus : — 



Head and body 180 mm. ; tail 100 ; hind foot 29 ; ear 23. 



Skull : greatest length 41 ; basilar length 32 ; zygomatic 

 breadth 20 ; length of upper molar series 9 : bullae 7. 



The colouring is black, with a minute speckling of very 

 pale buff, the belly grey. ?w^ is composed normally of six 

 laminne, but in isolated cases, without any rule as to size, 

 age^ or locality, seven laminae are found. 



(8) Otomys irroratus auratus, subsp. n. 



4.3.1.30-35; 1.3.1.81. Vredcfort, O.R.C. {Barrett- 

 Hamilton). 



95. 7. 1. 19; 95. 11. 3. 12-13. Mazoc.Mashonaland [Dar- 

 ling). 



