Melanogenesis has begun, but is not yet evident at this low magnification. Melanophores extend from the level of the hindbrain tabout the middle of the yolk ball. A few pigment cells are now present along the axis dorsal tthe yolk extension and on the dorsal part of the yolk ball. Pigment extents almost to the end of the tail. The arrow in F indicates the ventral horn of melanophores.
Pigment now extends the whole length of the embryo.
The dorsal and ventral pigment body stripes are filled in, but not so neatly as they will be later. The lateral stripe is not yet evident.