. Chordate morphology. Morphology (Animals); Chordata. A EGG mtcropyle and micropylar cell germinal disc seam of operculum 'i'^i* 4 CELL D THIRD CLEAVAGE neural crest blastomeres biostodisc embryo, germinal ring blastopore E EARLY CLEAVAGE neural groove. 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 Jollie, Malcolm. New York, Reinhold

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookleafnumber227