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Common names: Mauritius snakes,[2] Round Island boas, splitjaw snakes.

The Bolyeriidae are a family[2] of snakes native to Mauritius and a few islands around it, especially Round Island. They also used to be found on the island of Mauritius, but were extirpated there due to human influence and foraging pigs in particular.[3] These snakes used to be placed in the Boidae, but are now classed as a separate family. Two monotypic genera are recognized, but only a single species is extant.[2]

Geographic range[edit]

Found in Mauritius.[1]


Genus[2]Taxon author[2]Species[2]Common nameGeographic range[1]
BolyeriaTGray, 18421Round Island burrowing boa[4]Mauritius.
CasareaGray, 18421Round Island ground boa[5]Mauritius.

T) Type genus.[1]

Both of these monotypic gena once inhabited Mauritius and/or a number of islands around it. However, Bolyeria hasn't been reported since 1975 and is believed to be extinct, while Casarae is known to survive only on Round Island.[1]

See also[edit]


  1. ^ a b c d e McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  2. ^ a b c d e f "Bolyeriidae". Integrated Taxonomic Information System. Retrieved 16 August 2007. 
  3. ^ Bolyeridae at the Reptile Database. Accessed 3 November 2008.
  4. ^ Species Bolyeria multocarinata at The Reptile Database. Accessed 17 August 2007.
  5. ^ Species Casarea dussumieri at The Reptile Database. Accessed 17 August 2007.

Cited texts[edit]

  • Barker, David G.; Barker, Tracy M. (2003). "Family: Splitjaw snakes". In Murphy, James B.; Murphy, James B.; Schlager, Neil. Grzimek’s Animal Life Encyclopedia, Second Edition 7. Farmington Hills, MI: Gale Group. ISBN 0-7876-5783-2. 
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