Peculiar question - alias problem with chameleon´s tail

[apolaki]

I was told this is a Dahomey Hwi and it has what looks to be a chameleon with a curled tail. I googled images of "Afena swords" and came across some with similar cross shaped negative spaces within the blades. I am interested to learn the connections between Dahomey hwi, Benin ada, and Afena which I briefly read is form the Asante?

Thanks for any information you can provide.