Taxonomic diversity of racerunners with descriptions of two new Eremias species (Sauria: Lacertidae) from Central Iran.

We provide a diversity assessment of Iranian species of the genus Eremias based on the cytochrome oxidase I mtDNA gene fragment. We analyzed 93 genetic samples from the entire distribution of the Eremias fasciata species complex in Iran and surrounding regions, along with morphological data to support the description of two new species from Central Iran. We hypothesize that the diversification of the Eremias fasciata species complex was largely influenced by the fragmentation of sand massifs in the region. This same hypothesis has been used to explain the high level of endemism among the sand-dwelling species of reptiles along the Iranian Plateau in the same area. The two new species described herein can be distinguished from other congeneric species by their phylogenetic position and a combination of morphological characters. We use these data to discuss the taxonomy of Eremias based on morphology, habitat choice, and genetic data.

A new species of Eryx (Serpentes: Erycidae) from Iran.

We describe a new species of the genus Eryx Daudin, 1803 from southern Iran that is morphologically closely related to the Indian sand boa, E. johnii. The new species, Eryx sistanensis sp. nov. has a distribution range from Zabol in the Sistan Region to the southern parts of Sistan Baluchistan, as well as Hormozgan Province of Iran. Morphologically, E. sistanensis sp. nov. differs from E. johnii by having fewer dorsal scale rows at midbody and the tail tip is not as blunt as E. johnii. The genetic distance (p-distance) between the new species and the Indian sand boa is considerable (9.1% for cytb and 11.8% for COI).