The West African species also has a horn on the nose, where Easts dont.
I would not recommend a Horned Adder as your first hot. Firstly they are pretty hard to come by, secondly they can be fussy eaters.
I always say, if you want a hot, get an aggro yellow anaconda. If you can work it without getting nailed, you can upgrade to a hot of your choice.
And froot, those last two Gaboons are awesome!! I should get myself a pair like that
