When carefully analyzed we ultimately find that the surface of the altar exhibits in the first case two chieftains of equal rank, but respectively seated on the right and left forelegs of the tribal totem. To my idea this demonstrates that the dual rulership, such as existed elsewhere, prevailed at Copan, and that two lords of the alligator tribe were entitled the right and left forelegs or “arms” of the animal totem. It should be noted here that the Maya name for alligator is chiuan or ain. The dictionaries contain also the following names for the same or allied species: Sea-lizard, alligator (?), ixbaan; lizard in general=ix-mech, or mech, ix-be-bech, ixzeluoh and ix-tulub. Obviously occupying positions of less honor there are 2×2=4 chiefs of equal rank but seated, respectively, on the right and left hind legs of the totem. These again are evidently equivalent to the four sub-rulers of Mexico and Yucatan, the Maya Bacabs or Chacs. Lastly, the twenty different figures, connected with particular glyphs, are equivalent to the division of the tribe into as many portions, minus the head. The eight glyphs associated with this added to the twelve glyph-figures, complete the numeric organization into twenty. From this monument, the sides of which were probably painted, originally, in four colors, it would seem that the alligator clan, ruled by two chiefs and four lesser rulers, was organized into twelve divisions of people and eight classes of another kind. A circular tablet at Quirigua, which I shall describe further on, exhibits a subdivision into 2×6=12+5+3=20. It is not necessary to emphasize how remarkably the Copan altar conforms to the Zuñi method of clan-organization. It suffices for my present purpose merely to establish the community of thought which existed throughout, but which found its highest artistic expression and development in Central America.