clownsfish question

[corally]

I posted this over in the new hobbyist forum, then realized I should of posted it here. Is a black and white percula clown the same thing as black onyx clown?

 

[viper_930]

There are three different clowns commonly called black/white perculas:
Black onyx true percs: Black with 3 white stripes and orange on the head, fins, and tail.
Black/white ocellaris: Black with the normal three white stripes and orange around the mouth.
A. polymnus black variant: Body shape is noticably different, with yellow on the head and pectoral fins.