. Comparative anatomy. Anatomy, Comparative. THE ANCESTRY OF THE VERTEBRATES stc. p Of g- St c- 655. Thp^ ?i'iâ/t?;T°Vi?''^â¢u '"ustratmg the principal stages in the evolution of segmented animals. rln=r^â ^f fvfi li substitution of one organ for another. The most striking illustration is the ,>, ?l»^.» â ?! "IT^^"- f-n'i stomodeum and the formation of a new opening into the mesenteron k thl ^t^^Zi- *''«,dorsal organ ; the substitution of lungs for gills. The most striking innovation ^PtTJilJl^^- % * D "If"^ ^^P^''^^"? gill sacs and enteric diverticula
. Comparative anatomy. Anatomy, Comparative. THE ANCESTRY OF THE VERTEBRATES stc. p Of g- St c- 655. Thp^ ?i'iâ/t?;T°Vi?''^â¢u '"ustratmg the principal stages in the evolution of segmented animals. rln=r^â ^f fvfi li substitution of one organ for another. The most striking illustration is the ,>, ?l»^.» â ?! "IT^^"- f-n'i stomodeum and the formation of a new opening into the mesenteron k thl ^t^^Zi- *''«,dorsal organ ; the substitution of lungs for gills. The most striking innovation ^PtTJilJl^^- % * D "If"^ ^^P^''^^"? gill sacs and enteric diverticula; the rise and decline of metamerism. (From Patten's "Evolution of Vertebrates and Their ;). 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son
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Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
