Specimens of Vipera eriwanensis and Vipera kaznakovi collected from northeastern Anatolia were examined in terms of morphological characters and compared with the relevant references. The distribution ranges of Vipera eriwanensis and Vipera kaznakovi were extended in Turkey by collecting specimens from new localities.
BARAN, İBRAHİM; TOK, CEMAL VAROL; OLGUN, KURTULUŞ; İRET, FATMA; and AVCI, AZİZ (2005) "On Viperid (Serpentes: Sauria) Specimens Collected from Northeastern Anatolia," Turkish Journal of Zoology: Vol. 29: No. 3, Article 5. Available at: https://journals.tubitak.gov.tr/zoology/vol29/iss3/5