FOSSIL VARANIDAE AND MEGALANIDAE. 
887 
posterior third of this bone. It closely agrees with V. griseus Daud., 
whilst widely differing from V. salvator Laur., V. varius Shaw, &c., 
by the strongly developed ala superior, — the upper border of the latter 
is broken on the fragment — on which the strongly marked posterior 
part of the excavatio nasalis is seen, bordered by the crista nasalis marked 
in this place only by an acute angle of the maxillary. (Pl. II. Fig. 1). It 
is interesting to note that in V. griseus (Pl. II, Fig. 2) the excavatio nasalis 
is separated into two subequal parts, the posterior one being spoon-like 
excavated; this formation corresponds to that in the Csarnóta-fragment 
of V. marathonensis Weith. A somewhat resembling formation of the 
ala superior has been stated by the author in V. Dumérili Schleg., 
whilst the other recent species examined in this respect present uni¬ 
formly throughout an aberrant formation. On its exterior surface the 
fragment bears four small foramina, the outlets of the canalis nervi 
alveolaris superioris. The inner side is strongly mutilated, the lamina 
horizontalis maxiUæ being present in its basal part only; a single tooth 
and the stump of an other is preserved, between these two there is a 
solution of continuity, indicating by a parabolical surface the completely 
missing third one. The type of tooth and dentition closely agrees with 
V. griseus Daud. This maxillary might have belonged to a full-sized spe¬ 
cimen, whilst the dentary from Beremend described hereafter suggests a 
semiadult, or at least a younger adult, individual. 
Measurements : 
Greatest length of fragment : 14*6. 
Greatest height of fragment (on outer side, fom base of tooth 
to upper margin of excav. nasalis) : 8-8. 
Length of tooth (on inner side, from its basis): 2*6. 
Greatest breadth of tooth towards its middle region : 2-6. 
2. Intermaxillary. 
(Text-fig. 8b.) 
This bone, only knowTi from 'Weithofer’s figure (Textfig. 8b), 
appears to be damaged in its anterior part; the proc. nasalis inter-, 
maxillae is strongly developed, and seems to slightly widen backwards; 
its terminal part is missing. Weithofer supposes an «etwas höher, doch 
bedeutend mehr zugespitzt» and short snout, and alludes to the shape of 
the intermaxillary, as to characters confirming this opinion; having found 
25* . 
