McDiarmid et al. (1999) published the fi rst part of their planned taxonomic catalog of the snakes of the world. Since then, several new python taxa have been described in both the scientifi c literature and nonpeer-reviewed publications. Th is checklist evaluates the nomenclatural status of the names and discusses
the taxonomic status of the new taxa, and aims to continue the work of McDiarmid et al. (1999) for the family Pythonidae, covering the period 1999 to 2010. Numerous new taxa are listed, and where appropriate recent synonymies are included and annotations are made. A checklist and a taxonomic identification
key of valid taxa are provided.