Boa constrictor constrictor

Covering a major part of the Amazon Basin and surrounding regions this subspecies is often called the South American boa.  Though imperator, longicauda, ortoni, amarali and occidentalis can all be found within the continent.  BCC are the True Red-tails.  This subspecies shows the most difficulty to breed in captivity of the commonly kept boas, perhaps greater seasonal change in the wild compared to the regions of imperator is to blame.

This is the nominate species, though through taxonomic revision, former subspecies of Boa constrictor have been elevated to species status.  Imperator, sigma, nebulosa, and orophias.

Taxonomic data: Lanais 1768; less than 20 dorsal blotches to vent; 234-250 ventral scales; 89-95 mid-body scale rows.

Compiled and written by Christopher Gilbert, © Gilbert Boas 2008-2018                                      Contact: