aivi 
A MKMOIK UPON THE GENUS 
•ri,.. fa«.. i. hair cn-^entoia i„ form and bordered exten.ally by 
the vertieonniad for tla S9.— Tills is one of the most beautifully 
r i , he ciineetLin? and the condition of its facets is fully 
r“ir j - “.i:*ieal ia.r,a,se. „» iu recent animals I have referred this 
Lnaata the (tenua /.iW,ra/r as. after earefully studying »me remains ol t ie 
m , of /.. /W it. the New Haven Milseiim, I find that its cliaracters el„«..|y 
^ m-iaiiiil with th,«. of the latter, although the measurements of the metacarpus 
»„. .aaiaiileniMv lea. in thi, aia-clinen than those of Marsh's tyiie and may repieselit 
a .lilfen-iit aiaa'iea. The hiiiiil of this species as oomliared with that of />. fahidoms 
i. very liiaoh lighter in eoiiatriietion, and its general proportions approach more 
iifiirlv of tlif Taj)ir. • i i i .i at * 
Carpus.— ‘V\w <-ar|mH i» soiiiewliat broader in proportion to its lieiglit than that ot 
Ihe Tapir, and tlie general relations of the carpal elements are cpiite diflerent. The 
rollowiiig lire ita main iK‘cnliarities 1. Great extension poskn-iorly of tlie lunar 
la-lwii-n till- iiiagmnn and nnciforni. 2. Separation of the magiiiiin from the unci- 
fonn anteriorly, .‘h Position of the Innar-inagmim facet, it being nearly vertically 
plmiil, 1. 'Phe large eontaet lx‘t ween the unciform and metacarpal III. 5. A iioint 
to In- olim-rviil in this carpus is that it approaches more nearly the mesaxonic tyjie 
than that of /’. /f/ZWow/j; this arises from the fact that the unciform-metaearpal 
III iirtienlatioii is greater than in paludosiis, and con setpientl y inetaearpal 111 uii- 
|iriNielii>s more iiiMirly the mesuxial line of the hand than in the latter form. In 
the Tapir w»* s«h* a more advancetl stage of Mesaxonia wliere the metacarpal III is 
very iniu’li larger than the other nietapodials, and the axis of the mnniis divides 
tliis ini'taraqMiI «s|ually. 
Sotphoid . — 'Pile projsirtions of the scaphoid are rather high and narrow, and 
nppnMich thow of the same Ixine in the carpus of the Tapir' The superior face is 
lint, hnmil tninsvers«>ly, and i>osteriorly limited by a deep fossa which jxme- 
tnitrs aUait one-half the vertical height of the hone. The scaplio-magnnm facet is 
mtlicT ohli.iuely placed, as in I\ palttdosus ; it covers the whole superior surface of 
the magnum ; the |H>sterior portion articulating with the pivot of the magnum is 
l.aigiBaalia|«-.l, and ita aalcriui- laa-tioii foinia an acute angle with tlic part uf the 
ra.a-1 aiom aiilcriarly placed. In P. pahulosns the postoiior portion of this facet is 
hnaal anil aliorl. alal tlina ilillbra very much in fonn from Hint of L. laticcfis The 
-•aplaatni, I facet ia ,,.p„ratc,l fro.ii tl.c |x>atctior part of Hte facet fi.r tl.o magnum 
liy a ,l,,.p pit. It ,, ilroplv concave from aide to aide and ia contimioua at ita piwtcrior 
l^airt will, the roa,, „elr»|H,m,n faeet. which ia well marked iu this apecilueu, and 
forms ipiite n hnmd vertical facet for the traixzium ^ 
/.aaar.-The h.aar i, the moat characteriatic bone in the carpus of P 
backwaru 1: demrai^::,': 
