120 
Annals of the Transvaal Museum. 
those given in the original description, and will also serve for comparison 
with a larger form found farther north : — 
Old ?. 
Ad. $. 
Ad. <J. 
Head and body 
120 
117 
114 
Tail ... 
130 
128 
136 
Hind foot 
21 
21 
22 
Ear 
19 
18 
19 
Skull, greatest length 
31*8 
30*5 
30*8 
Basilar length 
26*1 
24-6 
24*8 
Zygomatic width 
16-2 
15-1 
14-7 
Molar series ... ... ... . 
4*4 
4-3 
4*6 
Diastema 
8-5 
7*7 
7-5 
Interorbital constriction 
4*7 
4-2 
4*5 
Nasals... 
11*5 x 3-6 
11-2 x 3*2 
11*1x2-9 
Width Brain case 
12*8 
12-9 
12-7 
Bullae ... 
6*8 
6-6 
6*3 
Mus Mogg 
i acaciae subsp. nov. 
I (3\ 3 $$, 1 juv. Woodbush. 
3 $$, Moorddrift, Waterberg. 
This subspecies differs from the typical one 
in being larger, though 
the size of the teeth remains the 
same. The following measurements will 
illustrate the difference in size : — 
Type, old $. Ad. cJ. 
Younger ad. 
Immature $. 
Head and body 
139 138 
132 
109 
Tail... ... ... 
155 160 
153 
135 
Hind foot ... 
24 24 
24 
23 
Ear ... ... ... 
21 21 
19 
18 
Skull, greatest length 
34*4 32-7 
31-5 
29 
Basilar length 
28 25-9 
25-5 
23-2 
Zygomatic width ... 
16-6 17*7 
16-4 
14 
Molar series 
4-4 4-4 
4*2 
4-5 
The first three of these specimens and a young one were taken from 
the same tree ; the young one, although only half the size of the adults, 
is coloured exactly like them. In all these specimens from Woodbush 
there is a tinge of pink on the chest or forearms, apparently due to some 
staining matter in their food. In fully adult specimens the mammae are 
six in number, that is, one pair pectoral and two pairs inguinal. 
Mus Breyeri spec. nov. 
This species, unlike any other with which I am acquainted in South 
Airica, has only five pads on the hind feet; it much resembles the multi- 
mammate mice in general appearance, but is rather larger and has a 
broader skull, 
Description : — Whole of the upper surface of head and body dull 
yellowish mixed with an equal proportion of blackish, the individual 
hairs being very dark slate grey at. the base, then yellowish, and finally 
the tips glossy blackish. On the flanks and cheeks the black tipped hairs 
disappear, so that a lateral yellowish mark extends along them, separating 
the paler under surface from the darker upper surface of the head and 
body. The chin and anal areas are almost pure white, a patch across the 
lower throat yellowish like the flanks, and the rest of the under surface 
