. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). tiUBKlJVGDOM METAZOA. /)5 terou, which iu this ca«e is identical with the bhistocoel iu commuuication with the exterior. This process is known as lii'ldiidnatiijn {¥\^. 20, A). A third method also exists, occurring liko delamination in its most typical form ixmoix^ the lower Metazoa. This is the i,nmi<jration method (Fig. 20, /i), certain cells of the })lastula leaving their position at tlio surface and passing into the 'l. Here they undergo division, and,
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). tiUBKlJVGDOM METAZOA. /)5 terou, which iu this ca«e is identical with the bhistocoel iu commuuication with the exterior. This process is known as lii'ldiidnatiijn {¥\^. 20, A). A third method also exists, occurring liko delamination in its most typical form ixmoix^ the lower Metazoa. This is the i,nmi<jration method (Fig. 20, /i), certain cells of the })lastula leaving their position at tlio surface and passing into the 'l. Here they undergo division, and, by the addition of other cells by immigration, the blascoccel gradually be- comes filled iip and a solid organism, consisting of an exter- nal layer of cells surrounding a central more or less solid. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. New York : H. Holt
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
