Been doing a bit of research and am having trouble finding a verifiable source explaining a couple things and wanted to know if anyone here could answer.

1) Is the black mamba is the only snake with a black mouth interior? Do all other species have white/pinkish interiors?

2) I know the inland taipan has, drop for drop, the most potent venom. Yet I keep seeing the mortality rate for untreated bites around 80% yet the rate for untreated black mamba is 100%*. Can someone explain why taipan isn't 100% fatal since it's more potent? Is it just accounting for the possibility of dry bites that adjusts it down since black mambas seem to be regarded as never giving dry bites? In which case, is inland taipan actually 100% fatal if untreated and envenomation occurs, and just drops to 80% because you might get bit and not envenomated?


*100% more or less, always recognizing that there could be an outlying case where someone miraculously can survive it.


Thanks!