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Section 119 (P1. III, fig. 9). The amniotic space between the disc and body stalk is diamond-sh Section 118 (P1. III, fig. 10). The amniotic space is still diamond-shaped.

...ar as the first intersegmental cleft, as Dandy (1910) first showed. In the Pfannensteil-Kroemer embryo the first of these appear opposite the third somite on the l | {{Pfannenstiel III}}, NT. 6

...length, with 13-14 pairs of {{primitive segments}}. (Embryo {{Pfannenstiel III}}, from the collection of Professor Pfannenstiel.) The contours of the embr ...length and with 13-14 pairs of primitive segments. (Embryo {{Pfannenstiel III}}, from the collection of Professor Pfannenstiel; slide 9, row 3, section 4