Ptomaphagus latior, Ptomaphagus cavernicola, Ptomaphagus californicus, ptomaphagus consobrinus, Ptomaphagus fisus

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith