BCI = Boa Constrictor Imperator

BCC = Boa Constrictor Constrictor

The vast majority of the boas on the market are BCI. From my understanding BCC tend to get a little bit larger on average and are less forgiving of husbandry errors. Once you look at a bunch of pictures of boas you will be able to notice the difference pretty easily.

I have a female BCI that is just over 3 years old and is in the 6 to 7 foot range. I'll get some pictures up later because I just fed her today. She still has a little bit of growing to do because I tend to stick to a conservative feeding schedule for my boas.