It is one of the smallest boas, have on average between 1.3 m and 2.5 m in length
It is one of the smallest boas, have on average between 1.3 m and 2.5 m in length, when fully grown, can reach up to 3.7 m.3 Normally weigh about 6 kg and females They are significantly larger than the males. Their time of wild life is 20 to 30 years, but they can exceed 40 in captivity, they can feed on small mammals, such as rats, mice and rabbits, as well as use the same "constrictor" system of the anaconda and other "boidae"
Like the southern subspecies (B. c. occidentalis), the upper part of the head has a sharp longitudinal line from which, at the level of the eyes, lateral black projections emerge.