.. with the scientific names of the animals.
The term REDTAIL was, until fairly recently, only applied to the Boa constrictor constrictor sub-species, commonly abbreviated as BCC. This has implications of morphology, behavior, squamation (scalation) and range in nature, IE: Suriname, Peru, Guyana, et-al.
Now, while BCC is found in Colombia, the vast majority of the Colombian boas imported, sold, bred and then also sold or traded are Boa constrictor imperator, or BCI.. Which is distinct from the BCC, in range, looks and so on..
Among the more scientific-oriented group of keepers and breeders the term Redtail is only properly applied to BCC and the Colombian boas we most often see in the trade are Common boas or Common Colombian boas. This is not saying anything bad about the BCI or people (like me) who keep them and enjoy them, it is just a way to get around the 'How do I know, what are the differences?' questions.
It is popularly believed that the term Colombian redtail (applied to common BCI) was an invention of the dealers and resellers who wanted to raise the price of and interest in the 1000s of $20 BCI they were buying and selling each year. It has worked!
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Gus
A. Rentfro
RioBravoReptiles.com
"Quality is not an accident. Perfectly healthy animals are a minimum requirement.. everything else is just salesmanship" gus