1893.] MR. G. A. BOTJLENGEE ON VIPEBA RENAEDI. 757 



and, as I think, ofEers the best explanation o£ the facts as at 

 present ktiowTi. For I cannot but think that (E. neglecta and 

 CE. liliillijii are two closely related species, while (E. neglecta, 

 var., is an incipient species which, perhaps, does not always 

 breed quite true. It seems to me that we have in the Kermadec 

 Islands a manufactor}' of species in full swing, but unfortunately 

 om* information is not sufficient to tell us exactly by what process 

 the species are made. 



4. On Vipera renardi, Christoph. By G. A. Boulenger. 



[Eeceived November 25, 1893.] 



(Plate LXIV.) 



When recently describing Vipera ursinii, Bonap.^ I briefly 

 alluded to another European species, V. renardi, described in 

 1861, but since forgotten or confounded with V. herus. My 

 fiiend Dr. F. Miiller, of Basle, having been so good as to send me 

 specimens fi-om vSarepta, the original locality whence the species 

 was described by Christoph, and the British Museum having 

 receiA'^ed further specimens from the St. Fetersbui-g Museum, 

 through the kindness of Dr. Herzenstein, I have no reason to 

 further delay the description of this species, of which I have now 

 17 specimens before me, viz. : — 



1, 2. c? & 2 , from Sarepta, received from Dr. F. Miiller, one of 

 which he has allowed me to retain for the British Museum. 



3. c?j from Saratov, received from the St. Petersburg Museum. 



4. d , from Ourkatsch, district of Tourgaisk, Kirghiz Steppes, 



received from M. Nazarow. 



5. c? , from the Eiver Emba, Kirghiz Steppes, received, as well 



as the following, from the St. Petersburg Museum. 



6. Young, from the Kirghiz Steppes. 



7. d , from Smeinogorsk, Government of Tomsk. 



8-12. Five specimens, (S , $, and young, from Chinas, 



Turkestan. 

 13. Young, from Kunges, Eiver Hi, Eastern Turkestan. 

 14, 15. d" & ? , Wernensky TJjesd, district of Varnoe, Eastern 



Turkestan. 

 16, 17. d , from Kuldja, Eastern Turkestan. 



' In the last part of these 'Proceedings,' above, p. 696. Since my note 

 appeared I have received further information respecting that species. First, 

 Mr. A. Erwin Brown has kindly examined Bonaparte's type specimen in Phila- 

 delphia, and the notes be has forwarded me substantiate my conclusions. 

 Secondly, I have been able to extend the known range of this Viper to France, 

 having received a specimen from the Basses-Alpes, through M. Honnorat, on 

 which I have reported in the ' Feuille des Jeunes Naturalistes,' xxiv. 1893, 

 p. 8. And lastly, I am informed by Prof. O. Boettger and Dr. F. Werner that 

 they have received specimens from the mountains of Bosnia, which agree in 

 aE essential respects with those from Laxenburg. 



