There may or may not be a homozygous form of Spider, and it may or may not be lethal.
For Dominate genes the heterozygous and homozygous phenotypes (visual expression) are the same. The only way to know if one is homozygous is to breed it repeatedly and always get heterozygous offspring. I believe BHB has done this with a Pinstripe.
Super is really reserved when the homozygous form of a codom/incomplete dom gene shows a DIFFERENT phenotype to the heterozygous one. ex. Super Mojo BEL.
Now, there is discussion whether or not an animal that has 2 different genes on the same allele that produce a different visual morph (ex Vanilla Cream) is a Super, since it is technically not homozygous for Fire or Vanilla.
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