\ MEMOIR UPON THE GEISUS 
‘m 
'I'lie centra of these vertebrai are nearly as convex aiiter- 
bu. tl,eir surface is less concave, 
Mkasukkmknts of Vertebrae of P. paludosl-s. 
M. 
AiIom. _ -220 
T'Mrnl width of a>hu> 112 
Width of •nt.mrllc imK-cmw 100 
Width oflKWt-wrtic.pniccHt^^ at middle . ■ • . . . 067 
lacnitthatl«« oftmnK 
IHawetor of iifural canal • • ' ... -070 
|k-|tth of alhu* at middle • • J J ^ 
.i™. 
laPlieth of B«i» 
KIrvation of »|.ine a«»ove floor of eimfrum 
Ungth ant i—t. along lamina 
Total hrwMith of ant. artic. aurfaciii 
41I, (Wrimt. 
larngth of laxly 
llrighl I total) 
llmallh of arrh at ant artic prooewa 
Height erf neural canal 
lx>ngth of iMxliea of xix cervicala 
■077 
•093 
•063 
•106 
•044 
•047 
•082 
•022 
•250 
'rite rirst tlnrsiil is lower and Hatter than that of Rhinoceros;, the pedicles are 
Ittwcr, anti the heijfht t>f its anterior articular processes above the centrum is not as 
Ifreat. 'rite traiisverm* process is longer and thicker from above downward than in 
RhiHoceros. ’rite faet'ts for the ribs look more anteriorly, whereas in the Rhinoceros, 
they l«s»k tlownwaitl. The transverse diameter between the postzygapophyses is 
not as great in this sjsfies as in Rhinoceros, and the latter approach more nearly 
a liorizonttd than the latter form. The posterior capitular facets are more oblique 
t«> the plane of the centrum than in the Khinoceros. 
'Flu* ii«*teln*s for the spinal nerves are deep and open as in the vertebne of the Rhi- 
nix^'nw, then* ls*ing no |K*rft)ration of the pedicles as in that of Tapirus. The char- 
wters of the wH'oml dorsal arc about the same as those of Rhinoceros, \\z : a de- 
cn*n.*w* in height in the ix*diele8 and change in slope of the prezygapophyses. The 
spine of this vert«*hni is very long and heavyq although shorter than that of the 
satne vert«*hni in the Khinoceros. It is deeply grooved in front. 
I h«* tuls'rrular facet is horizontal in Rhinoceros and it looks more outward 
than in J\il<rosyops. 'I'lie is>stzygapophyses are more oblique than in the first dorsal. 
In the thinl dorsal the transverse pn)cesses are finally preserved, they are broader 
ami heavit'r than thost* of the Rhinweros. The position of the tubercular facets is 
diflen*nt. fniiu thos«* of Rhinoceros. The lamina of this vertebra is quite short. 
