| ancient drainages divide cryptic species in australia's arid zone: morphological and multi-gene evidence for four new species of beaked geckos (rhynchoedura). | deserts and other arid zones remain among the least studied biomes on earth. emerging genetic patterns of arid-distributed biota suggest a strong link between diversification history and both the onset of aridification and more recent cycles of severe aridification. a previous study based on 1 kb of mtdna of the monotypic gecko genus rhynchoedura identified five allopatric clades across the vast australian arid zone. we supplemented this data with 2.2kb from three nuclear loci and additional mtd ... | 2011 | 21884806 |