Annals of the Transvaal Museum. 
273 
portion of the premaxilla 34 -7 ; and to the tip of the nasals 33 -2 ; basilar 
length 29 -5 ; zygomatic width 25 -5 ; width of brain case 14 -7 ; mastoid 
width 18 -7 ; interorbital constriction 6 -4 ; width of premaxilla at base 
6 -7 ; width of incisors at base 4 -6 ; molar series 5 -5 ; diastema 11 -2 ; 
length of bullae 9 -7 ; nasals 11 *3 X 3 *8. 
A specimen trapped at Arnhemburg may be referable to this species. 
It was found amongst shaly rocks and pebbles amongst the hills, and 
although a dozen traps were set at the same place for a week and constantly 
attended to this was the only specimen secured. The burrows were very 
small and so close to the surface that they could be broken open quite easily 
with the hand, but wound about under rocks in places so that it was 
almost impossible to follow them for any great distance. This specimen 
is immature and is consequently much smaller than the type, but the 
interorbital constriction is the same, 6 -4 mm. Similar burrows were 
observed at Worcester Mine in 1914, but there also they were equally 
difficult to capture and I had failed to secure specimens. 
Georychus vandami spec. nov. 
6 skins with skulls, 1 without, Griffin Mine, Leydsdorp (G. van Dam and 
J. Breyer). 
This species is grey, paler than any other South African species with 
which I am acquainted, and has the nasals somewhat widened at the tip. 
The alisphenoid canal has the posterior opening quite exposed in all the 
specimens, a character also found in Knysna specimens, and markedly 
different in this respect from G. natalensis and G. aberrans, in which the 
posterior opening is hidden ; this character is variable in some other 
species, however, and cannot therefore be relied upon. The type, an old 
A, measures : “ Head and body 133 mm. ; tail 17 ; hind foot 23 V’ Skull : 
greatest length to the tip of the incisors 37 -5 ; to the tip of the exposed 
part of the premaxilla 33 -5 ; and to the tip of the nasals 32 -2 ; basilar 
length 28 ; zygomatic width 23 -7 ; width of the brain case 15 T ; mastoid 
width 18 -5 ; mterorbital constriction 6 -9 ; width at the base of the pre- 
maxilla 6 -2 ; width at the base of the incisors 4 -3 ; molar series 5 *6 ; 
diastema 10 ; length of bullae 10 ; nasals 11-8 X 3 -5. 
Specimens from the banks of the Limpopo and Stimela, south-eastern 
Rhodesia, recorded in the Annals of the Transvaal Museum, Vol. IV, p. 183, 
are referable to this species. 
Georychus anomalus mihi. 
1 (J, 1 $, ad., 1 A, juv., Skinners Court, Pretoria (A. R.). 
Georychus jamesoni mihi. 
4 9?> Van Dyk Mine, Boksburg (J. Breyer). 
Georychus jorisseni Jameson. 
1 (J, 1 9, Fairfield, Rustenburg (Powell). 
Powell confirms my observation in regard to the partiality of this 
species for a small aloe that occurs commonly in the bushveld. 
