Topography of the presumptive rudiments in the endoderm of the anuran neurula.


I N previous papers (Nakamura & Tahara, 1953, 1954), evidence was presented on the formation of the anuran stomach and intestines. The first paper demonstrated the origin of the stomach from the posterior part of the fore-gut of the neurula. The second disproved the archenteric origin of the intestine: contrary to Goette's (1875) long-accepted theory, the… (More)


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