Dr. C. W. Andrews — Notes on Egyptian Eocene Mammals. 211 



With the possible exception of the lowest beds of the series seen 

 in Whitesand Bay, there is, so far as our present knowledge goes, 

 nothing comparable with the Dicliograptus beds of the Lake District 

 or the Lower Mytton Flags of Shroj)shire. In the Lake District 

 the many branched graptolites are characteristic of this horizon. 

 It is always possible that the beds may not be represented in Wales 

 by the graptolitic facies, but up to the present time no graptolite- 

 bearing beds of true Arenig age have been recorded resting con- 

 formably upon the Garth grit of Garth (Portmadoc) and its true 

 equivalents. The beds of Ty Obry and Ty Fry have a fauna more 

 closely allied to that of Llandeilo rocks than to that of any Arenig 

 beds with which I am acquainted. Hence there is the possibility 

 of a break in the succession between the grit of Garth and higher 

 'beds ; there may be other grits in the series indicating recommence- 

 ment of deposition, but these are not strictly the equivalents of the 

 grit of Garth. 



Table showing Extent of Zones in Wales. 



In conclusion, I oifer my grateful thanks to Dr. Matley for the 

 loan of his maps of the Lleyn Peninsula, and for advice concerning 

 "the working of it ; to Dr. J. E. Marr for allowing me to examine 

 his collection of fossils ; to Miss H. Di-ew, of Newnham College, 

 and Mr. W. G. Fearnsides, of Sidney Sussex College, for help in 

 collecting fossils in various places. 



III. — Further Notes on the Mammals of the Eocene of Egypt. 



Part III. 



By C. W. Andrews, D.Sc, F.G.S., British Museum (Natiu'al History). 



AMONG the collections now in Cairo I find several new mammals, 

 the remains of which have been collected by Mr. Beadnell, for 

 the most part during the last few months. Brief descriptions of 

 these new forms are now given in order that the names may be 

 included in the lists in Mr. Beadnell's forthcoming report on the 

 geology of the Faydm area. 



Pterodon macrognathus, sp. nov. 



This creodont is known from the nearly complete left ramus 



of the mandible. The last molar, the first premolar, and the 



incisors are represented by the alveoli only, but the other teeth, 



with the ex<3eption of the canine, the crown of which is broken off, 



