Black mambas are rarely black, and they're actually named for the inside of their mouth.
Venomous East African green mamba snake in a tree. Green mambas have short, fixed fangs at the front of their mouths.
eastern green mamba on a tree branch with head raised.
Green Mamba Umhlanga Kzn https://www.inaturalist.org/photos/137356846
© Dylan Leonard, some rights reserved (CC-BY-NC)
http://creativecommons.org/licenses/by-nc/4.0/ the same image was found on shutterstock
Eastern green mambas are members of the Elapidae family and inhabit the coastal rainforests of East Africa.
black mamba on the ground displaying its hood.
When threatened, a black mamba will often spread a narrow cobra-like hood.
Closeup of western green mamba with mouth open
Western green mambas (D. viridis) inhabit coastal rainforests in West Africa.