NF stage 33 and 34Imported
Nieuwkoop and Faber stage 33/34, corresponding to an embryo of age 1 day, 20 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Stomodeal invagination a shallow vertical groove. Dorsal part of eye more pigmented than ventral part; distinct melanophores in dorsal part. Melanophores appearing dorsally on the head and laterally in a row extending from just below the pronephros backwards. Length of tail bud about twice its breadth. Beginning of heart beat. Length: 4.7 - 5.3 mm.
Defined byxao
class Information
has_obo_namespace
xenopus_developmental_stage
class Relations
Subclass of
Related from
starts during
- oculomotor nervexao
- hypobranchial placodexao
- optic nervexao
- lateral line primordiumxao
- neuromast support cellxao
- lens fiber cell massxao
- lens transitional zonexao
- trunk placodexao
- ophthalmic arteryxao
- hyaloid blood vesselxao
- omphalomesenteric veinxao
- lateral line systemxao
- vagus nervexao
- perichondriumxao
- cartilage tissuexao
- musculoabdominal veinxao
- melanophorexao
- chondrocytexao
- lung budxao
- thyroid primordiumxao
- jaw muscle primordiumxao
- intersomitic vesselxao
- optic discxao
- cell condensationxao
- irisxao
- lens epitheliumxao
- perichondrial cellxao
- lateral linexao
- neuromast mantle cellxao
- endoskeletonxao
ends during
preceded by