788 REPORT OF THE HARVARD AFRICAN EXPEDITION 
collected on April 8th, 1924, at Lake Mutanda, Northern Ruanda, by Dr. J. C. 
Phillips. The formula of these two snakes, taking that of the Lake Mutanda 
specimen first, is Sc. 26-31, V. 157-161, A. 1, Sc. 35-40, L. 10-9 and 10-10. 
Those of the types were Sec. 25-27, V. 144-155, A. 1, Se. 40, L. 11-12. The 
reduction in the upper labials is clearly due to the fusion of what should be 
the 8th and 9th in the Burunga viper. 
LIZARDS 
Hemidactylus mabouia (Moreau de Jonnes) 
5 (M.C.Z. 24749-53) Bumba, B.C. 
1 (M.C.Z. 24754) Lulonga River, B.C. 
The last mentioned house gecko was taken on board the steamer near Lu- 
longa at the mouth of the river. 
Lygodactylus picturatus gutturalis (Bocage) 
6 (M.C.Z. 24755-60) Ruchuru, B.C. 
Agama colonorum Daudin 
6 (M.C.Z. 24767-72) Bumba, B.C. 
These agree with Schmidt’s Lower Congo specimens in having a range of 
7-9 canthal and supraciliary scales. 
Agama atricollis Smith 
3 (M.C.Z. 24761-3) Kisenyi, Ruanda, 1. 1927. 
12 (M.C.Z. 24764-6) Ruchuru, B.C. 
Chamaesaura tenuior Giinther 
1 (M.C.Z. 24798) Kitende, Uganda. 
Bedriagia tropidopholis Boulenger 
1 (M.C.Z. 24797) Between Abumombasi and Modjomboli, B.C. 
Lacerta vauereselli Tornier 
1 (M.C.Z. 24796) Burunga, B.C. 
The first specimen of this rare lizard to reach the Museum. 
Lacerta jacksoni Boulenger 
6 (M.C.Z. 24773-34) Ruchuru, B.C. 
12 (MC 2, 24775-30) Kibati, B.C., 25. i, 27. 
10 (M.C.Z. 24786-95) Lulenga, B.C., iii. 27. 
This series offers the opportunity to present rather extensive notes on what 
has been considered a rather rare species. In our series there are: 
(1) 8 plates in collar of which always 2, sometimes 3, are very much smaller 
than the others. 
(2) 8 longitudinal rows of ventral plates of which the outermost pair are 
very much reduced. 
(3) 12 to 19 femoral pores on each side, the lower number in females in 
which they are often extremely difficult to discern. 
