@Aho no Matey either that or she could be the only one to actually evolve into a fully grown blue spotted centipede like their mother they are still pretty huge and powerful enough it took a lot of the clans hunters to take her down. Her sister dead skin could simply help her mature faster but not give her a different evolution that way they would still all be different still all be powerful and wouldn't need to borrow traits of her sister making them all unique (in terms of the family since they other centipede of the same types will still exists even if they are rare)