Annals , of _ the Transvaal Museum. 
105 
characters, differing only in respect to coloration, and accordingly I refer 
these and the Ubombo specimen to that species, for the present distinguishing 
the South African form under the varietal name grandis, as there appears 
to be a definite colour difference. 
Tetradactylus ajricanus Gray.- — In this species the anterior limbs are 
very minute, sometimes indeed being altogether absent. 
Tetradactylus breyeri Roux. — This is allied to T. africanus , but is 
apparently distinct. The distinguishing characters in addition to those 
given in the key are : Dorsals in twelve longitudinal and seventy trans- 
verse rows, whereas T. ajricanus is described as having fourteen longi- 
tudinal and sixty to sixty-two transverse rows. 
Cordylosaurus trivittatus Pet. — In this species the degree of carination 
of the dorsal scales varies, sometimes being very pronounced and at other 
times not so. 
Cordylosaurus subtesscllatus Smith. — The South African Museum has a 
specimen without history which I refer to this species. In coloration it 
is uniformly brown all over. It is probable that this species will eventually 
prove to be a variety of C. trivittatus. 
Distribution. 
Gerrhosaurus validus Smith. — This species was recorded by the describer 
from near the sources of the Orange River. We have it from Woodbush, 
and Chubb records it from the Matoppo Hills and Empandeni in Rhodesia. 
The British Museum Catalogue has a record from Tette (Mozambique), 
and Bocage states that it occurs in south Angola. 
Gerrhosaurus major Dum. — The typical form is known from Zanzibar 
and German East Africa. The variety grandis Boul. was taken at Ubombo 
(Zululand), and we have it from Kaapmuiden and Malalane, Barberton 
District (W. Bolton). 
Gerrhosaurus flavigularis Wieg. — A very widely distributed species, 
being known from every part of South Africa with the exception of Great 
Namaqualand, Little Namaqualand, and western Cape Province north of 
the coastal districts. The South African Museum has specimens from 
Rondebosch (Cape Division), Robertson, and Knysna ; and in the eastern 
districts of Cape Province the species is abundant. Northwards the species 
extends through Central and East Africa as far as Sennar, and westward 
to Angola, the Congo, and Gaboon. 
Gerrhosaurus ty ficus Smith. — Smith took his specimen on the sandy 
plains immediately to the south of the mouth of the Orange River. Roux 
also records the species from Little Namaqualand. 
Gerrhosaurus auritus Boett. — Collected at Ondonga, in Ovampo- 
land. 
Tetradactylus breyeri Roux. — Collected by Dr. Breyer in the Transvaal. 
I have seen a specimen of this species from Umvoti, Natal (South African 
Museum), and the Transvaal Museum has it from Weenen County, Natal 
(Rev. N. Roberts). 
Tetradactylus seps L. — This species has been several times recorded 
from Table Mountain and other localities in the Cape Division, and the 
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