no R. BULLEN NEWTON on 



described by Prof. H. Douville 1 from the Upper Eocene deposits of the 

 Soudan (Tamaske). Examples of Plicatula polymorpha indicate a late 

 Lutetian or Bartonian horizon as that species occurs in the Upper Mokattam 

 Beds of Egypt as also in the Priabonian rocks of Italy. In a similar way 

 some small valves of Cardium cf. obliqimm have been identified, a species 

 recorded from the Lutetian of Egypt by Dr. Oppenheim. Among; the 

 Lucinidae, Phacoides eaglesomei, a new species, shows certain resemblances 

 to Lucina camerunensis of Oppenheim from the Eocene of the Cameroon 

 country ; it also exhibits features which connect it with Miocene, Pliocene, 

 and Recent species. A well sculptured shell Divaricella oppenheinii, sp. nov., 

 presents affinities to Lucina rigaultiana from the Bartonian of Europe. An 

 interesting valve of a probable Cardita planicosta indicates a very characteristic 

 Lutetian species although extending to the Bartonian. Its occurrence in the 

 United States Eocene has long been known, while Dr. Carlotta Maury has 

 discovered it, within recent years, in the so-called Midway Eocene beds of 

 the Island of Trinidad. The well known Cordiopsis incrassata, one of the 

 Veneridae, is also represented in the collection ; it ranges in Britain and 

 Europe from Lutetian to older Miocene, the latter period including more or 

 less related forms, while Bartonian examples are found in the Upper Mokattam 

 Beds of Egypt. Some large Tellinoid shells determined as Peronaea 

 nigeriensis show relationships to Tellina zitteli from the Egyptian Eocene ; 

 while specimens of Mactra semisulcata indicates a shell known in the British 

 Lutetian and throughout the Eocenes of France. Corbula rugosa is also a 

 familiar Lutetian shell of Britain, although found in the Eocenes of Europe 

 and likewise in the Upper Mokattam deposits of Egypt. 



The fossils of this collection having been discovered in a clayey deposit 

 are remarkably well preserved, better in fact than most African specimens 

 which as a rule occur in limestone rocks being frequently mere natural casts 

 with very limited sculpture details, and imperfect contours. It is of interest 

 to note, however, that Eocene faunas have been described from contiguous 

 territories of Western Africa. Papers by Dr. F. A. Bather 1 and myself' on 

 some Echinoids and Mollusca from the Sokoto region of Northern Nigeria, 

 their age being considered Lutetian although the later criticisms of Lemoine 



1 Eocene Echinoids from Sokoto: Geol. Mag., 1904, plate u, pp. 292-304. 



2 Eocene Shells from Nigeria: Ann. Mag. Nat. Hist., 1905, Ser. 7, Vol. 15, pi. 5, pp. 83-91. 



