|
XB-STAGE-23
|
Name: NF stage 11
|
XAO Id: XAO:1000021
|
Definition: Nieuwkoop and Faber stage 11; age 11 hr 45 min at 22-24 Celsius; corresponding to the following external morphological criteria: Horse-shoe-shaped blastopore stage. Blastopore groove surrounding about half of future yolk plug and indicated at its ventral side; future yolk plug often rounded rectangular, slightly elongated in dorso-ventral direction, diameter more than two-fifths of diameter of egg (plus or minus 50 degrees of circumference). Length: 1.4 - 1.5 mm.
|
[2.8.5]
