Porcellio scaber "skewbald tri"

Skewbald tri is a cross of calico and piebald mutations. Only the females exhibit the patterning, as in the American calico strain. However, all animals in the culture exhibit the piebald feature. The loss of pattern induced by piebald varies from extremely low expression (missing only a pleon, leg, or antennae) to very strong expression (almost the entire animal is colorless).