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The Boidae, commonly known as boas or boids, [3] are a family of nonvenomous snakes primarily found in the Americas, as well as Africa, Europe, Asia, and some Pacific islands. Boas include some of the world's largest snakes, with the green anaconda of South America being the heaviest and second-longest snake known; in general, adults are medium ...
Many snake biologists choose to recognize at least Calabaria as a member of a separate family (Calabariidae). The taxonomy of boas, pythons, and other henophidian snakes has long been debated, and ultimately the decision whether to assign a particular clade to a particular Linnaean rank (such as a superfamily , family , or subfamily ) is arbitrary.
The boa constrictor is a large snake, although it is only modestly sized in comparison to other large snakes, such as the reticulated python, Burmese python, or the occasionally sympatric green anaconda, and can reach lengths from 3 to 13 ft (0.91 to 3.96 m) depending on the locality and the availability of suitable prey. [16]
The largest living snakes in the world, measured either by length or by weight, are various members of the Boidae and Pythonidae families. They include anacondas, pythons and boa constrictors, which are all non-venomous constrictors.
The family Boidae consists of the nonvenomous snakes commonly called boas and consists of 43 species. The genus Charina consists of two species , both of which are found in North America. There is debate on whether the southern rubber boa, a population found in the San Bernardino and San Jacinto Mountains east of Los Angeles in California ...
Considered a small snake, the desert rosy boa normally attains a total length (including tail) of 43–112 cm (17–44 in). Exact length varies by subspecies. Desert rosy boas are one of the smaller members of the family Boidae. [4] A large adult has a body width about the diameter of a golf ball.
These snakes are therefore correctly represented in their own genera: Sanzinia and Acrantophis. [9] [10] [11] To add further to the naming confusion, many species of snake in the family Boidae are known colloquially as "boas". Also, four subspecies of B. constrictor are recognized, each with a distinct common name. [9]
The Cuban boa (Chilabothrus angulifer), [1] [3] also known as the Cuban tree boa [4] and by locals as Majá de Santa María, is a very large species of snake in the family Boidae. With lengths exceeding 5 m (16 ft) and a relatively heavy build, the Cuban boa is one of the largest snakes in North America.