...Stomatodaeum: that invagination of the ectoderm thatforms the mouth, pharynx, oesophagus, crop and gizzard... 
John. B. Smith 「Explanation of Terms Used in Entomology」
...A very important and remarkable process now follows—namely, the curvingor invagination of the blastula (Fig...
Ernst Haeckel 「The Evolution of Man」
...38 D, E); it is mostconspicuous when the invagination is complete and the segmentation-cavity hasdisappeared (Fig...
Ernst Haeckel 「The Evolution of Man」
...A blastula, with wide embryonic cavity (blastocoel,bl), g incipient invagination...
Ernst Haeckel 「The Evolution of Man」
...C gastrula, withcomplete primitive gut: the embryonic cavity has almost disappeared inconsequence of invagination...
Ernst Haeckel 「The Evolution of Man」
...The gastrula is then formed by invagination, ora kind of turning-up of the edge of the blastoderm...
Ernst Haeckel 「The Evolution of Man」
...” Nevertheless, the gastrula is formed here, as inthe previous cases, by the folding or invagination of the blastula...
Ernst Haeckel 「The Evolution of Man」
...In the middle of its hinder border we have thebeginning of the invagination of the primitive gut(Fig...
Ernst Haeckel 「The Evolution of Man」
...This invagination or folding proceeds from the primitive mouth, at the twosides of which (right and left) a couple of pouches are formed...
Ernst Haeckel 「The Evolution of Man」
...But in the third sub-class of the mammals the serolemmaforms, by invagination at its outer surface, a number of hollow tufts or villi,from which it takes the name of the chorion or mallochorion...
Ernst Haeckel 「The Evolution of Man」
...Hence before and during invagination there is an increasingdifferentiation of the inner from the outer layer...
Ernst Haeckel 「The Evolution of Man」
...A real gastrula (a simplebell-gastrula) is formed from the blastula by invagination, in the same way asin the amphioxus...
Ernst Haeckel 「The Evolution of Man」
...In the end this invagination goes so far that theouter or invaginated part of the blastoderm lies close on the inner ornon-invaginated part (Fig...
Ernst Haeckel 「The Evolution of Man」
...There is, however, an invagination of the ectoderm at the mouth,which has given rise to a muscular pharynx ( sd)...
Ernst Haeckel 「The Evolution of Man」
...This is done in just the same way as the invagination of the blastula, whichgives rise to the gastrula in the amphioxus (Fig...
Ernst Haeckel 「The Evolution of Man」
...” They may be conceived as largely-developed tubular cutaneousglands, formed by invagination of the cutaneous layer...
Ernst Haeckel 「The Evolution of Man」
...The part ofthe cloaca from the upper wall of which it forms belongs to theproctodæum, the ectodermic invagination of the rectum (p...
Ernst Haeckel 「The Evolution of Man」
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