DISTRIBUTION 129 



2. Eryx jaculus (Greece, Turkey, Roumania). 



3. Tropidonotus natrix. 



4. Tropidonotus tessellatus. 



5. Zamenis gemonensis. 



6. Zamenis dahlii (coast of the Adriatic, Greece). 



7. Coluber quatuorlineatus. 



8. Coluber longissimus. 



9. Coluber leopardinus. 



10. Coronella austriaca. 



11. Ccelopeltis monspessulana (West Coast, Greece, 

 and islands). 



12. Tarbophis fallax (West Coast, Greece and 

 islands, Constantinople). 



13. Viper a ursinii (Bulgaria, Bosnia, Herzegovina, 

 Montenegro). 



14. Vipera berus (Bosnia, Herzegovina, Rou- 

 mania). 



15. Vipera aspis (Bosnia). 



16. Vipera ammodytes. 



17. Vipera lebetina (Cyclades). 



X. Russia 



1. Tropidonotus natrix (as far north as 6o°). 



2. Tropidonotus tessellatus (south). 



3. Zamenis gemonensis (south). 



4. Zamenis dahlii (Caucasus). 



5. Coluber quatuorlineatus (south). 



6. Coluber dione (south, between Volga and Ural) 



7. Coluber longissimus (south, Poland) 

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