372 Annals of the South African Museum. 



Incisors Canines. Molars. 



Pristeiognathus ... VVVVVV W VVVVVV 



Hya^nasuchus VVVVVV \J\J WW 



Trochosuchus VWW WW WW 



Lycosuchus VWW WW V 



The phylogeny of the group may have been something hke that 

 indicated in the following diagram : — 



Alopecodon, Broom. 



IctuJosacJtus, Crooiu. 



Ar nog licit hus, Broom. 



Hycenasiichus, Broom. 



Trochosuchus, Broom. 



Lycosuclius, Broom. 



Lycosaurus, Owen. 



Tigrisuchiis, Owen. 



