·     Features:

o Outline: boulder outline, with walls and ceiling bolded / reinforced (i.e. a “symmetric cave”) or only ceiling bolded.

o Instead of a single vertical bar in the middle, there can be two (optionally cross-hatched), and optionally with cross bands between them. [Is this correct? TOK = “cloud”, “storm” has this “symmetric cave” with crossed bands in the middle, with two or three “protected feelers” above, and there are variants of TOK without the “protected feelers”. But it’s not really clear that tz’i can have these crossed bands (no examples from MHD or Bonn have them). So this could be a misconception on the part of JM.] Note however:

§ It has survived into the web-based version of JM (revised by Helmke).

§ MHD.XV3 – a codical form – has crossed bands.

§ Thompson’s original example for T563b has crossed bands, and Bonn has decided to perpetuate this number as 0563st (though Bonn’s example has no crossed bands).

These three points are probably sufficient indication that the cross bands can be present in tz’i, even if they are not common.

·     Do not confuse tz’i with:

o The “boulder-only” reduced variants of TOK/to:

§ tz’i has (generally!) no crossed bands in the centre, whereas TOK/to does.

o The “two-comb” full variant of sa:

§ tz’i has the bolding going all the way across the ceiling, whereas sa has a break caused by the double vertical bars.

·     This glyph can be read as SUUTZ’, tz’i, or xu.

·     TOK glosses it as SUUTZ'/tz'i/xu? and has TOK.p2.para2.l-4: The sign that looks like a head of a bat, for instance, has two confirmed readings in distinct contexts: a logogram SUUTZ' "bat" and a syllabogram tz'i. The third reading - a syllabogram xu - is plausible, but less well-proven. The corresponding catalog entry will show all these readings underneath the character.