110 Dr. C. W. Andrews — Notes on Egyptian Eocene Mammals. 



upper edge of the supra-occipital forms the lambdoidal crest and 

 extends on to the roof of the skull, sending a wedge-shaped process 

 between the hinder ends of the parietals, but there seems to be no 

 trace of a distinct interparietal bone. The parietals are long, 

 ■extending nearly to the front of the temporal fossa. Their most 

 peculiar character is that they send back on to the occipital surface 



Fig. 1. — Skull of Mmritherium. — A, from above; B, from side. ant.orh, 

 antorbital foramen ; ex.oc. exoccipital ; fr. frontal ; ju. jugal ; mx. maxilla ; 

 ti. nasal ; pa. parietal ; par.oe. paroccipital ; pmx. premaxilla ; pt. post- 

 tjTnpanic process of squamosal ; .s.oc. supra-occipital; sy. squamosal. i\, 12, 

 t3, incisors; c, canine; pni2, pm3, pmi, premolars; ml, m2, ;w3, molars. 



a short process which is wedged in between the supra-occipiial 

 and the squamosal. The cranial part of the squamosal, as well as 

 the neighbouring region of the parietals, is considerably swollen 



