FOSSIL VAUANID ÄE 'A ND, MEGALANIDAE. 
37-9.' 
Pannonian Boa for example, still existing in the mid die- M i;o c e n e 
(Textfig. 5), whilst in the Pliocene .period (Textfig. 6) its waters 
withdrew, a continental connexion being- thus established 
between the coast of Dalmatia, the ; offsets of the Alps and the Karst, 
as-well as.with Western Hungary and Germany; as is seen Germany was: 
in those ages already united-by dry land to the coasts of the Adriatic 
and Greece, wherefore, if we accept the hypothesis of a Western 
origin — as pointed out by palaeontological re m a i n s f o u n d 
up to now— V, Hof manni from the Miocén e of Stätzling, as 
Fig. 6. Aspect of the World at the Pliocene. (After Koken [in Arldt, 1. c.] drawn by 
Miss F. Lángh & the author). 
well as the Pliocene and P r a e g l a c i a 1 greco-hungarian V. mam - 
thonensis surmising an identity of species, or at least an orthogenetical 
connexion — could easily have spread over the. same continent; if on the- 
other hand, an Eastern origin could be thought of — although 
presently only possible from a speculative point of view — 
the extension of the Miocene V. Hof manni may be supposed . to have 
proceeded from Asia towards Germany, from the Caspian Sea northwards, 
whilst in the Pliocene it might have spread towards Greece and Western 
Hungary, from the European Brackwater Sea southwards, through Asia 
Minor, and as regards Greece, and thereby eventually also the shores, 
of Dalmatia, even reaching those parts in the Miocene already,, from 
which latter regions then exteding in the- Pliocene t.o Western. Hungary 
