There are a bunch, such as Nicaraguans, Hondurans, Boas from Panama, Costa Rica and more... there are also smaller, more unusual Island forms located on Islands just off the coast of some of these areas... such as Corn Islands, Cay Caulkers and more...
She sounds a bit small, maybe just fed on maintenance diet...
i'm sure many others will throw in their $0.02 too - lots of nice boas like these going around lately...
take care - Joe
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'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin
Thanks and take care - Joe Rollo