Contributions to the Anatomy of certain Ungulata, including Tapirus, Hyrax , and Antilocapra
1909; Zoological Society of London; Volume: 79; Issue: 1 Linguagem: Inglês
10.1111/j.1096-3642.1909.tb01863.x
ISSN0370-2774
Autores Tópico(s)Mollusks and Parasites Studies
Resumopiii'ii'los h\ niattoil lii^iunontous i'i>rils in both /\li'/>/u(s ((/'ricKiiiis nnd E. maxim us.M. Uiard goes on to sugyost.that the samo may bo the I'aso with Ifi/rax capciii^is, quoting appaiontly coniirniatoiy evitlenco from the avoU known memoir of CJeovge upon that animal.I myself am unable to contirm this suggestion from my (lisseelitMis of several e.xamples of both Jli/rax capensis and //.(/orsitllfi.Still theri> vemaiivs the Elephant, whieli seems most undoubtedly to resemble the Indian Tapir in this remarkable spet'ialisation.it is diilieult to form an opinion as to whether au}-stress is to be laid upon the faet that both these animals are Ungulates.['2) \(>t('K upon i/ir liraiii and ttotnc ot/tcr points in t/ie Aii((iom>/ o/'liyrax.'V\\c Soeietv aeipiired some months ago the temporary possession of a eonsiderable number of examples of Ih/ra.rcapensis, wbieh were all about half-grown.The measvn-ement of one indixidual (and all were of about the same size) was a foot or so in length.The disseetimi of so large a series of speeimens has tMiabled me to add some facts to what is already known about the strueture of this primitive Ungulate.I shall deal Avith sncli organs as I have specially iu\estigated senatim,iu\d shall in some <\ases ho able to compare them with the corresponding organs of II, dormlis, of which I have dissected two examples.Azi/(ios rein.-1 have already desci-ibed * the condition of this \ein in lli/ra^r and quoted the descriptions of others.It is e\ ident fi'om what hivs been written on the subject, that the pivnailing arrangt'inent in J/ifra.r is the presence of a single .■\/.vgos only, "and that im the right side.In all the examples to which the pivsent note refers, this arrangement of the azygos was lV>und.Tl\e comparative constancy of the azygos, upon which I have already ventui'ed to insist, is thus established for the })vesent species.The lirain of lli/r(uv has been tigured by several anatomists.Thus 8erres gives in his ' Anatomic Oomparoe du Cervean ' f two views of the brain.Latei' Dareste reported + upon three brains which wei-e not very well preserved.Of these he wrote that they *• s'eloignaient du type des Pachydermes povn* se rapprtn^her ile celui des Ojirnivores " -no hint, here, it will be noted, of any Ivodent afVmities.ijiome years latei-Cervais § figured .acast of the brain in his well known paper upon the mammalian braiix.The most complete series of llgures known to me of the brain id' this ' Subungulate " aiv thvise of (^eorge in his monograph j, upon Ill/rax.The brain is tigured in maiiy views and very thoroughly.The bniiu of Ifi/rax is also tigui-ed by Sir Richard Owen in his * " Tho A/.vaos Voins in iM;uun\i»ls," W '/.. S. Iil07, p. 10;?. t 18'Jl IS'-V.i>l.lo.tigs.'JiU), 273.
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