A MKMOIll UPON THE GENUS 
. r vertcO,ni in the former genus is very high i*nd narrow ; its 
,K-.hmeiihir ivgion ol tin obli(luely placed tuhereiilar facet. Tlio 
tmiiMV4TS4- |.nK-.-ssesaivs lo • ‘ i^jveloped and connected with the trails- 
m /f" T 
v.-rw- P«^'<‘‘‘'*^’'* tlieir external margin being slightly raised and 
the pn-7.yga|H.phys<-s '“y oblicpie and with the surface plane 
l«.nli-n-a liv ■ . ■ |- articular proceases />. departs 
'“del/" ,M, --..0 sa,-, a. e„ar„c.er approaches the 
■''■'"'nlell.Tdrun, .d this vertel.ra is la, -go a„d opisthoccelous. 
> i ,e l-n,e el,'„„elers of the hiliibar vei tebra, are veiy mteia-stmg and are 
Liim/iar. Hhinoecros, and, like those of the 
■ ; U K, nh.e. The eonfun. is elongated and 
til' '-..g^ligUly foncave. Theh.dy is 
k.l:.|.il l..h.tv and slmnglv l,iang„b,r in ontline. The netn-al arch ,s very high, 
nainnv and inneh elongated; more so in pro,,ortlon to its size than that of Efmis. 
are hiaiken olV, hilt their bases are ol good size. 1 hose procesres 
iven- linihahrv stniight and rather narrmv. The piezygapophyres are ivide, l«„g 
Iiiiieh a ider and iniieh less laineave than those of the dorsals. I he superior |K.rt«,„ 
of lliii* pnK-..m< 4-\hilMt.s no .sign of convexity, as m the Artiodactylcs vherc tl.i 
upiHT ami l.nv.T articulations are convex and concave respectively. The prcvyga- 
iH.i)hvs.-s an- ls.nl«-n-«l l>v the verv prominent metapophyses, which are very large. 
!.o,nim.ss.-4l and .-xti-mled half way across the surface of the lamina. They ternn- 
i.nte in a rugom- incurvi-il .-xtivmity. The metapophyses m /\ pa/udosus are very 
tmu-li larger than in any of the ivcent Perissodact/es. In the Tapir and Kl.i- 
ms-4-n»s they an- «|iiit«- .sniull. The neural spine is different in forin and ciirvatiire 
fnan that <»f A 7 //«errr<v and approaclies in form that of Jtqtnis. I he torni of t le 
l»oi*l/.vga|M»phys«-s in the Ininhar n*gion is different froni that of the dorsal just 
ih-m-rilMsI. Tln-.-s- pnM-«-s.s(‘s an- placed more nearly horizontal. In this vertebra 
\v»- have a true int«-rhK-king of the articular surfaces, resemhling that of the 
.\rli<Hlaetyh-s hut not as highly developed. 
In eontnist with the latti-r group the lower portion of the involute is ver\ 
largi- ami stnaigly c«>nvex. when-as the upper part joining the spine is \ei_\ 
small ami rudiim-iitary. In the lumbars the basal portion of the episphen is 
ileveh»|M- 4 l. In eoinjiarisim with the postzygapophysis of the last dorsal just 
ih-srriln-«l. we find tin- articular surface of this vertebra more complex; that is, the 
hnnluir |s»st/.yga|Hiphyses an- moiv highly developed than those of the doi*sal region. 
In this n-sja-t-t /’. pa/ndosus ivseinbles tlie Artiodactyles where the lumbar region 
n-nches tin- highi-st i-omplexity in its vertebral processes. The articular pre- 
. rt-sses ami tin- fitriu of the neural arch of the dorsal and lumliar vertebral just 
descriU*<l difl'er so widely fnnn tho.se of the Tapir and Khinoceros that it may bo 
«»f int«-n-st to n-view the characters of these processes in recent and fossil Perissodac- 
