Leucism is in the glossary, but it may need reworking.
Amelanism isn't. I believe it got lost in the shuffle! Sorry, Mats. I have a bunch of words below that may help hone the definitions(or not).
Amelanism: An animal lacking black pigments. Yellow and red pigments are present. This animal is not a "true" albino. Also see Albino, Leucism and Xanthism.
Xanthism: An animal which is yellow or golden in color. This may happen in nature or through selective breeding.
Axanthic: An animal lacking yellow pigmentation. This animal will be entirely black.
Leucism: An animal with white pigmentation, but normal eye color. This is not a "true" albino. Also see Albino, Amelanism and Xanthism.
I know there have been posts on this site about "all black" Corydora Aeneus. But, I'm not sure the word "Axanthic" has been used....
Amanda
(Mats, I'm going to see if I've lost any other words you've posted.
)