However, they are generally a brown, grey, or cream base color, patterned with brown or reddish-brown “saddles” that become more pronounced towards the tail. The coloring of boa constrictors can vary greatly depending on the locality.
Pelvic spurs are the only external sign of the rudimentary hind legs and pelvis, seen in all boas and pythons. Other examples of sexual dimorphism in the species include males generally having longer tails to contain the hemipenes and also longer pelvic spurs, which are used to grip and stimulate the female during copulation. constrictor reaches, and occasionally tops, the averages given above, as it is one of the relatively large subspecies of Boa constrictor. These smaller subspecies are generally insular populations. Several populations of boa constrictors are known as “dwarf boas”, such as the population of B. The size and weight of a boa constrictor depends on subspecies, locale, and the availability of suitable prey. Some specimens of this species can reach or possibly exceed 45 kg (100 lb), although this is not usual. Females, the larger sex, more commonly weigh 10 to 15 kg (22 to 33 lb). The boa constrictor is a heavy-bodied snake, and large specimens can weigh up to 27 kg (60 lb). A report of a boa constrictor growing up to 18.5 ft (5.6 m) was later found to be a misidentified green anaconda. Females commonly exceed 10 ft (3.0 m), particularly in captivity, where lengths up to 12 ft (3.7 m) or even 14 ft (4.3 m) can be seen. As such, the usual size of mature female boas is between 7 and 10 ft (2.1 and 3.0 m), and 6 and 8 ft (1.8 and 2.4 m) for the males. Clear sexual dimorphism is seen in the species, with females generally being larger in both length and girth than males. The boa constrictor is a large snake, although it is only modestly sized in comparison to other large snakes such as the reticulated python and Burmese python, and can reach lengths from 3–13 ft (0.91–3.96 m) depending on the locality and the availability of suitable prey. Other common names include chij-chan (Mayan), jiboia (Latin American), and macajuel (Trinidadian). imperator, which is also regularly, and erroneously, referred to as a “red-tailed boa” or “common boa”. Within the exotic pet trade, it is also known as a “BCC”, an abbreviation of its scientific name, to distinguish it from other boa constrictor subspecies such as B. constrictor, is often referred to specifically as the “red-tailed boa”. Though all boids are constrictors, only this species is properly referred to as a “boa constrictor” – a rare instance of an animal having the same common English name and scientific binomial name.Īll subspecies are referred to as “boa constrictors”, while the nominate subspecies, B. This article focuses on the species Boa constrictor as a whole, but also specifically on the nominate subspecies B. Ten subspecies are currently recognized, although some of these are controversial. A staple of private collections and public displays, its color pattern is highly variable yet distinctive.
It is a member of the family Boidae found in North, Central, and South America, as well as some islands in the Caribbean. The boa constrictor or red-tailed boa (Boa constrictor) is a species of large, heavy-bodied snake. Boa constrictor (Boa constrictor constricor)
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