Amalgams are close-relation organization units for Apollyon, although the concept of a "family" is not one found in Apollyon culture. Amalgams are usually 5-25 strong, and the names of Apollyon within the same Amalgam are named after a central theme.
Considering the fact Apollyon have no concept of a family, all Apollyon within an Amalgam could be seen as potential mates to one within it. The Amalgam is NOT a familial model, and Apollyon within the same Amalgam are not related genetically, or in any other way.
The original member of the Amalgam is usually seen as a guardian or parental figure to the rest of the Apollyon in the Amalgam, although the other Apollyon within an Amalgam are usually from the same "generation".
Amalgams start with a single Apollyon, who have an extraordinarily small chance to be picked to start their own Amalgam upon spawning and getting picked up by a Distributor.