Can someone identify which type of Dogon mask this is?

[Mzungu Poa]

Hello, I have a small collection of African masks and I'm not exactly sure which particular Dogon mask I have.  I purchased it in Africa on my last trip and was told that it was a Dogon Crocodile mask. Someone else told me that it was a Dogon but not a Crocodile mask.  Can anyone help me determine exactly which mask this is? Thanks...