Annals of the Transvaal Museum. 
121 
whitish, the individual hairs being of a lighter grey at the base than those 
on the upper surface, and tipped with white. The feet are white. The tail 
is sparingly clothed with dark brown bristles above and white ones below; 
the rings are about 35 to the inch. The shorter matted hairs measure 
about 10 mm., and the longer bristles about 15 ; they are all soft in 
texture. 
The type is an old male from Moorddrift, with the teeth much worn 
down, and gives the following measurements : “ Head and body 130, 
tail 125, hind foot 25, ear 19’ 5”; skull, greatest length 31 ‘7, basilar 
length 26*5, zygomatic width 16 ’3, width brain case 12* 4, interorbital 
constriction 4*2, molar series 4 * 7, diastema 8 * 8, bullae 5, nasals 12 • 5 x 3 • 3. 
Last year I trapped a similarly coloured mouse in some thorn scrub 
near Messina in the Northern Transvaal ; but as I was unable to look at 
the trap for some days owing to my being busy in preparing a lion skin, 
the specimen was too much decomposed to skin when I found it. 
Noticing that it was of a species I had not previously met with, I 
measured the specimen as well as I could and kept the skull, which is 
still in the collection. It proves to be larger in all respects than the type 
from Moorddrift. I have no doubt that this species is one which is 
peculiar to the bushveld scrub and varies geographically like Mus Moggi. 
I have named the species in honour of Dr. H. G. Breyer, to whom is 
due the facilities given me to carry out this all important field work. 
Mus , spec.? 
1 ad. 5, Gladdespruit, Carolina. Mammae 18. 
1 old $, Devils Knuckles, Barberton. Mammae 18. 
1 old <J, Barberton. 
Mus, spec.? 
4 Worcester Mine, Barberton. 
Mus , spec.? 
2 <?(}, Worcester Mine, Barberton. 
Mas , spec.? 
1 1 $, in spirits (both old), Onderstepoort, Pretoria (pres. G. A. H. Bedford). 
1 <3\ 1 $, in spirits (both old), Rooiplaat, Pretoria (pres. Dr. H. G. Breyer). 
Mammae in both old $55 16 in number. 
Mus , spec.? 
1 ad. $, 2 older $<$, Moorddrift, Waterberg District. 
1 ad. Zoutpan, Pretoria District. 
Mammae in an adult $ not preserved, 20 in number. 
Mus, spec.? 
1 old $, Woodbush Village. Mammae 20. 
All the above-mentioned specimens apparently belong to the multi- 
mammate group ; but until I have more material, no good purpose would 
be served by naming them. Those from the same localities show very 
little variation amongst those of the same age. 
Dasymys incomptus Sund. 
1 (£, Gladdespruit, Carolina. 
2 old <}(£, in spirits, Onderstepoort, Pretoria (pres. G. A. H. Bedford). 
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