Geographic distribution records for snakes of the Pernambuco Endemism Center (PEC). A Liotyphlops trefauti B Boa constrictor and Corallus hortulanus C Epicrates cenchria and E. assisi D Chironius carinatus and C. exoletus E Chironius flavolineatus and Dendrophidion atlantica F Drymarchon corais and Drymoluber dichrous G Leptophis ahaetulla and Palusophis bifossatus H Oxybelis aeneus and Tantilla melanocephala I Spilotes sulphureus and S. pullatus.