The species placement of Breviceps has recently been evaluated. This shows potential for many new species
in the mossambicus and verrucosus groups.

One major outcome is the elevation of Breviceps adspersus pentheri to full species status due to the clear polyphyly of the B. adspersus.

https://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.13394

Nielsen, S. V., S, R. Daniels, W. Conradie, M. P. Heinicke, and B. P. Noonan. 2018. Multilocus phylogenetics in a widespread African anuran lineage (Brevicipitidae: Breviceps) reveals patterns of diversity reflecting geoclimatic change. Journal of Biogeography 45: 2067–2079.