Detection of cryptic diversity in lizards (Squamata) from two Biosphere Reserves in Mesoamerica.

A combined approach based on karyology and DNA taxonomy allowed us to characterize the taxonomic peculiarities in 10 Mesoamerican lizard species, belonging to six genera and five families, inhabiting two Biosphere Reserve in Chiapas, Mexico: La Sepultura Biosphere Reserve, and Montes Azules Biosphere. The karyotypes of four species, sp. 3 ( species group) (2n = 38), (Lichtenstein et von Martens, 1856) (2n = 50), Cope, 1861 (2n = 40), and Cope, 1885 (2n = 29-30) are described for the first time, the last one showing a particular XXXX/XXY condition.