Woma is a co-dominant mutation, but the super form, called the Pearl is a lethal gene. This means that it is too genetically weak to survive, so they do not generally live for long.
Womas, like most other mutations an vary, and a good Woma looks very much like the Spider morph. It does not, however, have the characteristic head wobble that Spiders and Spider combinations are known for.
We are working with Woma, and it will be interesting to see what combinations we can produce.