سیستماتیک خانواده typhlopidae (reptilia: ophidia) با تأکید ویژه بر جنس typhlops در فلات ایران

based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t. vermicularis is distributed all over iran. in this study 103 specimens of typhlops vermicularis collected from 16 distinct localities from all over iranian plateau and out of it were examined. post- anova pair wise analysis and two multivariate analysis including principal component analysis (pca) and cluster analysis based on 19 metric and 7 meristic characters across all groups verified significant intra- and –interspecific differences in some important characters. results of multivariate analyses showed that there is no significant differences between different populations of this species, and so it seems that the distribution range of this species is continuously extended from north africa, southeastern europe to northern afghanistan, a wide area with homogenous populations (the relevant morphological and molecular data are under preparation and will be published in the forthcoming paper). in addition, three specimens of ramphotyphlops braminus (daudin, 1803) are reported from iran for the first time. the specimens were collected in residential sites in bandar abbas and ahvas cities in south and southwestern iran and qeshm city on qeshm island as well. the morphology characters of collected specimens are presented. these specimens represent the first certain localities of the species in iran and the locality of and are only representative of typhlopidae in the islands of the persian gulf.