the HYL-T;OSAURrS 
entire miirgin of the coracoid, and the figure of 
the onioplate ; and as the teetli and other bones of 
the Ignanodon possess so many of the peculiar 
characters of the lacerta', (not to mention the dis- 
parity in size,) it cannot, it is presumed, in the 
present state of oiir knowledge, be referred to tliat 
animal. To avoid the confusion, therefore, which 
would necessarily arise from a mistaken appropri- 
ation of this skeleton to the teeth and other bones 
found in the Tilg-ate strata, and from the convic- 
tion that its osteological organisiition is pecnliar 
and important, I venture to suggest the propriety 
of referrino- it to a new o-eiuis of saiirians. The 
generic characters would, of course, be the pecu- 
liarity of the sternal apparatus, and the remarkable 
processes which are distributed around it ; and I 
propose to distinguish it by the name of Hi/kro- 
saiinis*, to indicate the locality in which these re- 
mains were discovered. Fhe orio-inal animal in all 
probability differed as much in its external form, 
as in its skeleton, from known species ; we are 
certain that it was covered witli scales, and there 
aj)pears every reason to conclude that either its 
back was armed Avith a tbrmidable row of spines, 
constituting a dermal fringe, or that its tail pos- 
sessed the same appendage, and was enormouslv 
disproportionate to the size of the body, as in some 
of the recent lacertm ; the specific name ot' annafioif 
in either case, would not be inappropriate. 
It is not my intention to trespass longer on the 
indulixence of the Societv, for althouu'h manv larire 
♦ From t \)i, \sooil, trtnJd, or forest : aiul lizard ; the 
\\ KAl I'EN I.lZARO, oi' h'o.csi/ Lizard rt' l'i/t;otc L'orrsf. 
