400 
G. J. DE FEJÉR VARY 
to axis of vertebra, whilst the following vertebrae bear proc. transversi 
curved very decidedly forwards. 
The upper arch is strong and stout in first postsacral vertebrae, with 
small proc. obi. posteriores, bent downwards and somewhat fore wards 
(in the direction of body), with subrhomboidal lower surfaces. Proc. obi. 
anteriores spoon-like, slightly pointed, rising more abruptly than in the 
described dorsal vertebra. A strong lateral bony edge extends backwards 
on each side from outer edge of proc. obi. ant.gradually vanishing into the 
proc. spinosus, these two converging bony elevations, especially sharp 
in the further postsacral vertebrae, separate the upper arch into two surfaces : 
a cuneiform superior one, comprising the median part of the arch, with 
proc. obi. anter. and proc. spinosus, and a lower one, comprising the late¬ 
ral parts of the arch, with proc. transversi and proc. obi. posteriores. This 
feature is but very feebly expressed in F. griseus. A complete proc. 
spinosus is present but in a unique caudal vertebra, originating from the 
posterior half of the tail ; in other specimens this process is present but in 
the form of a more- or less damaged stump. In the first postsacral vertebræ 
the proc. spinosus seems to have been thick (though laterally strongly 
. compressed), directed backwards, apparently related by a faint median 
keel to the anterior edge of the tectiform middle-part of upper arch. In 
the following, thus still basal vertebrae of tail, this keel rises to a strongly 
marked crest, whilst completely vanishing in further caudal vertebræ; the 
latter ones even exhibit a small roundish impression separating the proc. 
spin, from the anterior tectiform part of arcus vertebræ; the proc. spino¬ 
sus in these vertebræ is large, of a considerable length, strongly compressed 
and arched on its dorsal edge, 1 thus differing a good deal in this respect 
from V. griseus arid approaching F. salvator Laur. As regards the gene¬ 
ral shape of the upper arch (arcus vertebræ) the anterior part appears 
much larger than the posterior one, both separated from eachother by a 
conspicuous strangulation occurring about at the beginning of the 3 d 
third (on the further vertebræ in median region) of the vertebras length. 
No sulcus connectens. 
Ilea surements : 
Greatest (median) length of upper arch of strongly fractured largest 
basal vertebra (PL II, Fig. 11): 12'28 
Greatest (med.) length of upper arch of somewhat smaller (and fur¬ 
ther) basal vertebra (Pl. II, Fig. 12): 9‘49 
Distance between foremost points of proc. obi. ant. of same vertebra: 
10*1 
1 As could be .stated from the unique complete specimen. 
