Geographic distribution records for snakes of the Pernambuco Endemism Center (PEC). A Apostolepis longicaudata and A. cearensis B Atractus caete, A. maculatus and A. potschi C Boiruna sertaneja and Caaeteboia sp. D Dipsas mikanii and D. neuwiedi E D. sazimai and D. variegata F Echinanthera cephalomaculata and E. cephalostriata G Erythrolamprus almadensis, E. taeniogaster, E. miliaris, and E. aesculapii H E. poecilogyrus, E. viridis and E. reginae. I Helicops angulatus and H. leopardinus.