Kingdom Mnemia (Memetic organisms)
Phylum Lingates (Transmitted by human speech/language)
Class Graphiformes (Normally found in written form)
Order Alysographia (Chain letters)
This family is named for the pyramid scheme structure common to all members of the family. Each specimen in this family will include a list of addresses of its last 4 to 10 hosts, and instructs the current host to alter this list by adding his or her address to this list and removing the oldest address from it. Hosts are also directed to send a small sum of money to each name on the list.
This is the oldest genus in the family, including the progenitor species of the entire family. Pyramidia simply instruct their hosts to send money to previous hosts, without further adaptations. The most well-known species is P. rhodii.Genus Nominalegus
Known from a single species, N. nominalegus, this genus has evolved an adaptation to circumvent a common resistance in many hosts, the idea that pyramid schemes are illegal. Nominalegus instructs hosts to include a slip of paper with the money they send to previous hosts, one which is to be written "Please add me to your mailing list." This is claimed to be a service in exchange for the money sent, allegedly making the entire transaction legal.
These consist of some inspirational message, followed by the instruction to share it with a friend.