When the 3rd edition of Glaw and Vences's guide came out in late 2007, I searched again for a skink that could be this one. The description of Trachylepis tandrefana is quite a good match, and they are reported from the west coast not too far south of Anjajavy. So I believe that these skinks are either T. tandrefana or a closely related but not yet described species.
Here is a list of all the reptiles and frogs I saw on this trip to Madagascar.
- Glaw, F., Vences, M. 2007. A Field Guide to the Amphibians and Reptiles of Madagascar, Third Edition