Members of the genus Diporiphora are slender perching agamid lizards from Australasia, with a conservative morphology and some outstanding taxonomic issues. Here we assess morphological variation in the morphologically similar D. pindan, D. valens, and D. winneckei from the western deserts of Australia. A reassessment of morphological differences that included the presence or absence of a gular...

We investigated the phylogenetic relationships among most Chinese species of lizards in the genus Phrynocephalus (118 individuals collected from 56 populations of 14 well-defined species and several unidentified specimens) using four mitochondrial gene fragments (12S rRNA, 16S rRNA, cytochrome b, and ND4-tRNA(LEU)). The partition-homogeneity tests indicated that the combined dataset was homogen...

Is sex a product of genes, the environment, or both? In this review, we describe the diversity of sex-determining mechanisms in reptiles, with a focus on systems that display gene-environment interactions. We summarise the field and laboratory-based evidence for the occurrence of environmental sex reversal in reptiles and ask whether this is a widespread evolutionary mechanism affecting the evo...

Sex-determination mechanisms and sex chromosomes are known to vary among reptile species and, in a few celebrated examples, within populations of the same species. The oriental garden lizard, Calotes versicolor, is one most intriguing this regard, exhibiting evidence multiple sex-determination modes single One possible explanation for unusual distribution that C. different determination confine...

The paper presents the results of age and growth studying Tajikistan toadhead agama Phrynocephalus sogdianus by skeletochronology. A total 29 adult individuals (14 females 15 males) from vicinity Uchkyzil (Termez district, Surkhandarya region, Uzbekistan) were studied. All animals, on section tubular bones had a birth (hatching) line appearing shortly after lizards hatching. majority sample con...

A new species of Ptyctolaemus Peters, 1864 is described from Htamanthi Wildlife Sanctuary, Sagaing Division, Myanmar. The differs P. gularis and aff. Tibet, China, by having relatively longer limbs different colorations the gular region, it collicristatus much a less developed nuchal crest in males. Moreover, genetically an uncorrected percentage distance 23.5% 24.8%, respectively, inferred mit...