Erycinae

Erycinae is a subfamily of the family Boidae which includes Rubber Boas, Sand Boas, Rosy Boas, and depending on the source, the Calabaria. They are found throughout the warmer climes of the world, in arid and semi-arid habitats.Compared to true boas, erycines are quite small, with most members of the subfamily remaining well under a metre in length. Fossil erycines have been found in rock strata over 50 million years old, and were once widespread in North America. Now, only two species remain in North America, as well as the sand boas in Africa, Asia and southeastern Europe.
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