FROM TANGANYIKA AND KENYA 19 



Meleagrinella radiata (Trautschold) 

 Lopha solitaria (J. de C. Sowerby) 

 Lopha tifoensis sp. nov. 

 Liostrea dubiensis (Contejean) 

 Exogyra nana (J. Sowerby) 

 Mactromya quadrata (Roemer) 

 Corbida kailtaensis sp. nov. 



Of the above species, Meleagrinella radiata occurs in abundance at one horizon. 

 Further north, near the Daua river, the Rahmu Shales of Joubert (i960 : 19) are 

 referred to the Oxfordian on ammonite evidence and have yielded the following 

 bivalves, as now identified : 



Mytilus (Falcimytilus) jurensis Roemer 



Camptonectes auritus (Schlotheim) 



Lima (Plagiostoma) rahmuensis sp. nov. 



Lopha gregarea (J. Sowerby) 



Lopha solitaria (J. de C. Sowerby) 



Lopha cf. intricata (Contejean) 



Exogyra nana (J. Sowerby) 



Protocardia rahmuensis sp. nov. 



Homomya rahmuensis sp. nov. 



The succeeding Seir Limestones of Joubert (i960 : 20) have been dated as at least 

 in part Upper Oxfordian (transversarium Zone) on ammonite evidence, although it 

 is thought that their upper part may belong to the Lower Kimmeridgian. It is 

 probable that all of the following forms dealt with in the present memoir, which are 

 mainly from the Wilderri Hill and Dusse localities, are from the Oxfordian part of 

 the limestones : 



Grammatodon (Indogrammatodon) stockleyi Cox 



Grammatodon {Indogrammatodon) irritans (Hennig) 



Mytilus (Falcimytilus) jurensis Roemer 



Stegoconcha gmuelleri (Krenkel) 



Meleagrinella radiata (Trautschold) 



Entolium corneolum (Young & Bird) 



Camptonectes auritus (Schlotheim) 



Eopecten thurmanni (Brauns) 



Eopecten aff. albus (Quenstedt) 



Chlamys (Radulopecten) inaequicostata (Young & Bird) 



Pseudolimea duplicata (J. de C. Sowerby) 



Lopha gregarea (J. Sowerby) 



Lopha solitaria (J. de C. Sowerby) 



Liostrea dubiensis (Contejean) 



Astarte huralensis Stefanini 



Ceratomya wilderriensis sp. nov. 



Mactromya quadrata (Roemer) 



Pseudomelania (Rhabdoconcha) wilderriensis sp. nov. 



