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Summary Stage Literature (59) Attributions Wiki
XB-STAGE-63

Name: NF stage 49

XAO Id: 1000061

Definition: "Nieuwkoop and Faber stage 49, corresponding to a tadpole of age about 12 days at 22-24 Celsius and having the following external morphological criteria: Melanophores usually appearing around thymus gland and nerves and blood vessels of head; xantophores appearing on pericard. Forelimb bud distinct. Hindlimb bud somewhat longer, distal outline still circular, no constrictions at base. Melanophores appearing on dorsal and ventral fin. Length: 17 - 23 mm."


Preceded By: NF stage 48 Succeeded By: NF stage 50
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