Collectives
Even in invocations, which generally required precise naming, the Romans sometimes spoke of gods as groups or collectives rather than naming them as individuals. Some groups, such as the Camenae and Parcae, were thought of as a limited number of individual deities, even though the number of these might not be given consistently in all periods and all texts. The following groups, however, are numberless collectives.
Read more about this topic: List Of Roman Deities