The mago glyph type basically has an open mouth (vaha). If the mouth is closed it is an added sign. This type of shark comes half a year later than the shark which opens up the spring season (vaha mea):  180 Ga1-4 (5) Ga7-16 (186) vaha mea mago 182 days The bent tail indicates how the sun is turning around in the middle of summer. The spring shark is lean and hungry, a voracious son of the sun of last year.

I could have added that he has a very long snout, but I do not know what it means. The snout comes first and maybe it is long because 58 days must be added at the beginning, we must not forget them and begin with glyph number 1 on side a.

I decide to look at the Mamari text, said to be from pre-missionary times. Are there 58 glyphs at the end of side b which we can connect with the black mago or with a tamaiti glyph?

Given that side a really is side a, we can count glyphs at the end of side b:

This is the page which I once defined and in which we have glyph number 58 from the end:

Cb12-5	Cb12-6	Cb12-7	Cb12-8	Cb12-9	Cb12-10
Cb12-11	Cb12-12	Cb12-13	Cb12-14	Cb12-15	Cb12-16
Cb12-17	Cb12-18	Cb12-19	Cb12-20

A Rei is promising, likewise the peculiar looking niu which follows. Tapa mea leans slightly forward, a sign not yet understood. It has 3 + 5 'feathers' in front, as if to say that light will come (3 strong ones from the sun and 8 lower down from the moon).

Counting numbers of glyphs on side b we find Cb12-17 to be number 291, 'one more' than 10 * 29.

Going forward and counting from Cb12-17 to the end of side a we reach 58 + 392 = 450 = 9 * 50, as if to say that the end of side a is also the end of spring sun. The 'snout' measures 58 glyphs and the whole shark 450 glyphs. If we divide by 3 in order to reach a more reasonable length, it becomes 150 days (= 10 solar half-months).

The system which we have perceived in G and H does indeed find support from the text of C.