For much of this century, scholars have tended to dismiss the Madrid Codex as a resource because of the large number of apparent scribal errors in the hieroglyphic text of the manuscript. An examination of naming patterns and attribute distribution with respect to the codical deities, however, reveals that many of these so-called errors are patterned in meaningful ways. These patterns suggest that our view of the Maya pantheon as consisting of a series of discrete entities with distinct conceptual domains is a Western construct, rather than a valid representation of pre-Hispanic Maya ideology. Reference to ethnohistoric sources from both within the Maya area and elsewhere in Mesoamerica (e.g., accounts from central Mexico) provides a model for conceptualizing Maya deities as members of overlapping complexes or clusters, each composed of a small number of underlying divinities characterized by various aspects, or manifestations.