XVI. 
ANNALES MUSEI NATIONALE HUNGARICI. 
1918. 
CONTRIBUTIONS TO A MONOGBAPHY ON FOSSIL 
V ARANTI) AE AND ON MEGALANIDAE. 
By Dr. Baron G. J. db Eejérváby. 
(With 38 Figures in the Text and Plates I—II.). 
Of fossil Varanidae as yet comparatively little is known, ulterior 
investigations having assigned a completely different systematic position 
to many remains previously defined as belonging to this family although 
ot in any wise connected with it. 
Thanks to my friend Dr. Th. Kormos, who entrusted me with the 
examination of the fossil Varanus -remains of the Hungarian Geological 
Institute at Budapest, and after due study of the literature referring to 
the subject, I have been enabled to elucidate certain questions of syste¬ 
matical value especially concerning European forms, as well as amplify our 
present knowledge of Vararms marathonensis Weith. (=V. deserticola By.)* 
I wish here to express my sincerest gratitude to Mrss. Dr. Th. 
Kormos ; . privat docent, and Dr. 0. Bzombathy, my colleague at the Zoolo¬ 
gical Department of the Hungarian National Museum, and ëspecially to 
Dr. Baron Francis Nopcsa and Mr. F. Siebenrock, curator at the 
Natural History Museum in Vienna, as well as to Dr. W. Wolters- 
torff, curator at the Magdeburg Museum, for the kindness with which 
they furthered my studies. I am also much indebted to my wife, 
Baroness A. M. de Fejérváry née Lángh, for having greatly assisted 
me throughout my work. 
PART I st . 
VARANIDAE. 
CHAPTER I. HISTORICAL AND CRITICAL SYNOPSIS. 
A) Varanidae of feurope. 
As regards the fossil Monitors of Europe we are obliged to 
admit to a somewhat confused state of things as well from the sys¬ 
tematic as from the morphological point of view. The fossil remains 
