Tecciztecatl Metztli.

one or two related deities ("Conch Shell-Lord" and "Moon"), part of the Tetzcatlipoca complex, representing omnipotence, feasting and revelry, possibly symbolic of the moon
"Table 3. Major Deities of the Late Pre-Hispanic Central Mexican Nahua-Speaking Communities." Handbook of Middle American Indians, Volume 6: Social Anthropology, ed Manning Nash (Austin: University of Texas Press, 1967).