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XB-STAGE-51
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Name: NF stage 35 and 36
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XAO Id: XAO:1000049
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Definition: Nieuwkoop and Faber stage 35 and 36; age 2 days, 2 hr at 22-24 Celsius; corresponding to the following external morphological criteria: Stomodeal invagination roundish. Eye entirely black, choroid fissure nearly closed. Formation of two gill rudiments, anterior one nipple-shaped. Melanophores appearing on back. Posterior outline of proctodeum still curved. Length of tail bud about three times its breadth. Beginning of hatching. Length: 5.3 - 6.0 mm.
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[2.8.5]
