How are zoas named? And do variants have a different name?

[rhody605]

To my understanding Zoa's are named by whoever discovers them. How are the different variants of the same ones named. Are the named the same or get a different name all together?

The reason I am asking is because on one of my colonies of zoas there is a group of them with a different colored mouth.

I am clueless as to weather they are a different stage of coloring or a different species or if it is normal. Ha ha ha

Here is the photo from the supplier.


Mine look just like them. But some on one side if the colony have bright green mouths and all the rest of the coloring of the polyps is the same.