Lewisi hybrids are lower percentage Lewisi blue iguanas. Typically the lower percentage yields less blue. If you compare the Lewisi hybrids on this site to the Lewisi you can see the difference in quantity and quality of blue. Also Pure Lewisi have flatter more wedge shaped heads, unlike the Cubans who’s nose rolls off round at the tip. There are different sub species mixes you can have to give you a hybrid. You can cross Cayman Brac with Lewisi or you can cross Cuban with Lewis and you can mix all three, Cuban, Cayman and Lewisi.