Antals of the Transvaal Museum. 
Snakes. 
Glaucoma distanti Bonl. 
Typhlops bibroni Smith. 
Ablabophis rufulus Licht. 
* Boodon lineatus D. B 
Pseudaspis cana Linn. 
* Leptodira hotamboeia Laur. 
* Lycophidium capense Smith 
Chlorophis natalensis Smith. 
* Chlorophis hoplogaster Giintli. 
* Naia haie Linn. 
Sepedon haemachates Lacep. 
Homorelaps dorsalis Smith. 
* Homalosoma lutrix Linn. 
* Dispholidus typus Smith. 
* Psammophis sibilans Linn. 
Psammophis furcatus Pet. 
* Primer orhinus tritaeniatus Giinth. 
Tr imer orhinus rhombeatus Linn. 
(also in Angola). 
* Tarbophis semiannulatus Smith. * 
* Dasypeltis scabra Linn. 
Causus rhombeatus Licht. 
Atractaspis bibroni Smith, (also 
in Angola). 
* Bitis arietans Merr. 
* Python sebae Gmel. 
Frogs. 
* Bana angolensis Boct 
Rana fasciata Tschudi. 
Bana natalensis Smith. 
* Rana adspersa Tschudi. 
* Rana delalandi Tschudi 
* Phrynobatrachus natalensis Smith. 
* Cassina senegalensis D. B. 
* Bufo regular is Reuss. 
* Bufo carens Smith. 
* Xenopus laevis Daud. 
A number of these asterisked species belong to the tropical fauna, 
but some are really South African species which have extended north- 
wards. The preponder ence of tropical forms in any single locality is 
considerably greater than is the case when a large area is comprised, for 
whilst the tropical fauna in South Africa is on the whole a heterogeneous 
assembly of unrelated species which are widely distributed over large areas, 
the endemic fauna is composed of sets of closely related species which are 
more strictly localized in distribution, and the areas occupied by such 
species do not much overlap. 
Unfortunately, it is not possible for me to give a list of the Capetown 
fauna for comparison with the preceding, and for the present it must 
suffice to say that the majority of the tropical species have their southern 
limit in some part of Eastern Cape Colony, whilst only a very small per- 
centage reaches as far as Capetown. 
The following statistics irelate to this question of overlapping 
of faunas : : — South Africa has about 136 species of lacertilia, of which 
forty-four are found beyond the northern boundary; in Angola, Bocage 
recorded sixty-two species of lacertilia, of which thirty-one occur also in 
South Africa; in German East Africa, Tornier ( Zool . Jahrb ., 1900, p. 579) 
records sixty-five species of lacertilia, twenty-three of which also occur 
in South Africa ; Mr. Boulenger’s list of the Whyte Collection from North 
Nyassaland (P. Z. S. 1897, p. 800) comprises fourteen species of lacertilia, 
of which eleven occur also in South Africa ; in Somaliland [Boulenger, 
Annal. Mus. Civico. storia. Nat. Genova Serie 2a, vol. XVII (XXXVII)], 
seventy species of lacertilia are recorded, of which ten occur also in South 
Africa ; in Egypt, the only lizards also to be found in South Africa are 
four species, as follows : — Varanus niloticus , Mabuia quinquetaeniata , 
Gerrhosaurus flavigularis , and Agama colonorum , which last-mentioned 
doubtfully occurs in South Africa. 
We may now- turn to a general consideration of the lizard fauna of 
South Africa, from point of view of the distribution of the species and 
their relationships. The lacertilia of South Africa are composed as 
