. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. ANATOMY or VERTEBRATES. 45 and along the whole liEcmal region of the tnmk, from the head to the tail. This want of correspondence with the number of the true segments of the endoskeleton, and the seat of developement of the inter- and dermo-neurals and inter- and dermo-hasmals, with some minor considerations, led me, in 1845, to substitute for the views and illustration of the typical vertebra; pro23osed by Geoffroy ,' and then accepted and taught by Professor li. E. Grant - in this country and by others abroa
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. ANATOMY or VERTEBRATES. 45 and along the whole liEcmal region of the tnmk, from the head to the tail. This want of correspondence with the number of the true segments of the endoskeleton, and the seat of developement of the inter- and dermo-neurals and inter- and dermo-hasmals, with some minor considerations, led me, in 1845, to substitute for the views and illustration of the typical vertebra; pro23osed by Geoffroy ,' and then accepted and taught by Professor li. E. Grant - in this country and by others abroad, the interpretation of the supposed type-exemplar, which is contrasted with Geoftroy's in fig. 40. The names applied by the French philosophical anatomist to the several parts of the combined endo- and exo-skelctal segment. Plciu-oncctcs Solca. XLIII. are opposite the left hand of the reader: those applied to them in my ' Archetype of the Skeleton' are opposite the right hand. The small exogenous process standing out from the sides of the centrum is a dismemberment of the parapojDhysis; in the first caudal vertebra it is given off' from the base of the parapophysis, increases in length in the second caudal, rises upon the side of the centrum in the third, and becomes distinct from the parapophysis in the fourth : it diminishes and disajjpears in the ninth and tenth caudal verteljric. In Polijptems and ]\Iura3- noids a transverse process coexists, from the same cause, with the parapophysis. This, in the twenty-fifth trunk-vertebra of Murcena Helena,'^ bifurcates, and in the following vertebra} the ' Memoires du Mus. 4to, ix. 1822, p. 119, pi. y. ' Lectures on Conip. Anat. p. 58. ' xnv. p. 14. No. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Owen, Richard, 1804-1892; Cornell University. College of Ve
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