| Description | Slide shows black and white microscopic photograph of 'Triton Taeniatus, with an almost normal secondary embryo on the ventral side, in inverted orientation.'
Title below image reads: 'Fig. 133, Triton Taeniatus, with an almost normal secondary embryo on the ventral side, in inverted orientation. The secondary embryo has been induced by a large piece of dorsal marginal zone of Triton alpestris which had been implanted into the blastocoele of a young gastrula. (After Holt-freter, 1933e.)' |