Boa Species

and Sub-species:-

NOTE:- Round Island boas, (also called Mauritius snakes and splitjaw snakes) are no longer regarded as Boas (Boidae family) and are now in the Bolyeriidae family.
There were 2 species, one if which is believed to be extinct.

They are included here for completeness!

Bolyeria multocarinata Round Island burrowing boa (Presumed extinct -Last seen in 1975)

Casarea dussumieri Round Island Ground Boa