Nice looking boas,
If no parental lineage is known they can only be classed as a really nice common boa or bci,(boa constrictor imperata )(bi) now
The BCI gene pool has been so muddied of the years with people crossbreeding localities to get some amazing morphs it's really hard to tell on most now.
I have a nice common boa too I'm sure she is mostly central American genes down to her size etc but I will never know for sure so I just class het as a common boa, the red tail boas normally refer to the BCC (guyana/Surinam and a few more, these are quite distinctive with mostly really red tail ( some don't ) but they also have different shapes heads and bat like saddles some people call them widow's peaks, and are normally alot more expensive as there quite sort after in the boa world ,I've also got a little Guyana and a few other locality boas that are quite distinctive ,I also own a few decent BCI morphs
Hope this helps
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