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Compared to the size of the gill clefts the cavity of the pharynx is, at this stage, comparatively small.

The salamanders differ as regards the number of fishlike gill clefts that they all possess in their young stages, but which disappear entirely or in part during later life.

For the sake of simplicity the gill clefts are not represented, and the pharynx, mouth, and liver are represented in outline only.

As in the preceding reconstruction no attempt is made to show the gill clefts, and only the dorso-ventral profile of the enteron is shown.

The gill clefts no longer communicate with the exterior.