226 ADDTTIONS TO THE FOSSIL. (12) 
cates in the front third of the bone, and vanishes in the direction of 
Ihe Iwo anterior lateral processes." 
A conspieuous beak-like process on Ihe basioceipital, pointing 
backwards, is never developed in such degree on the Sand-Viper. The 
general shape of basioceipital-is triangular, and narrower, till that of 
the Sand-Viper is rather pentagonal and wider. 
Locality: Polgardi. 
I dedicate this new species to Ihe honour of 
my friend Prof. O. ve Gepury, who put at my disposal 
precious material to compare with. 
13. Vipera berus L. 
There is a complete, and a fragmentary basis- 
ph&noid in the collection. (Fig. 5.) 
Locality: Brassö, Fortvogöhegy. 
Bie.9. x 
Vin n ! 4 Ss \ - » a 
There are yet a great many vertebr® and ribs 
L. Basisphenoid. 
Magn. 4x. Of snakes in the collection, but the specifie distinction 
Brassö, of them is almost impossible. 
Zoogeographical and phylogenetie connexion. 
If we look over the list of Amphibians and Reptiles living in 
Hungary during the Pannonian and Praglacial (Interglacial?) Periods, 
we may see that except Atana Batthydnyt By. which has at present 
no relatives in Europe, all the species mentioned have direct descen- 
dants here on one hand or in Asia-Minor and Syria on the other. 
| understand under ihe sentence of «have direct descendants 
here an one hand», that the species here occurring, occeur in Asia- 
Minor and Syria, that is to say in West-Asia also. 
There are namely between the species enumerated a few such, — 
as for instance Varanus deserlicolus By. and Pelobates robustus By. — 
the-probable descendants of which live now exclusively in Syria, being 
this the most north-western point of their distribution. Varanus deserti- 
1 This two lateral processes on {he anterior third of bone are too characte- 
ristic on the basisph®noid of Vipers, and are in opposition to V. ammodytes, 
strongly developed in Vipera Gedulyi By, 
un Wu. 
