The one with the whit dots around its back is the Euprepes (was Mabuya) varius. The other one I have to look it up tonight in my books.
Here is a nice link with details on the Euprepes varius and other reptiles & amphibians of Arushe NP Tanzania
http://www.unipv.it/webshi/images/files/tanzie2002.pdf
Link

