NEWTON: LOWEK TERTIARY MOLLUSCA OF THE FAYUM. 69 



*G. "WniTEHousEi, Oppenheim. 

 *G. Edmondstonei, Oppenheim. 

 *G. (?) HisTRio, Oppenheim. 

 *G. (?) Arabica, Mayer-Eymar. 



OsTREA ELEGANs, Deshayes, var. coenigera, Mayer-Eymar. 



0. Fraasi, Mayer-Eymar. 



0. Stanlkyi, Mayer-Eymar. 



0. Cailliaudi, Mayer-Eymar. 



0. RAMOSA, Mayer-Eymar. 



0. PLiCATA, Solander. 



0. CUBITUS, Lamarck, var. paucicostata, Oppenheim. 



0. Keili, Fraas. 

 *0. Schweinfuethi, Mayer-Eymar. 

 *0. Sickenbeegi, Mayer-Eymar. 



0. Hessi, Oppenheim. 



0. Qeruniana, Mayer-Eymar (= Ostrea ^gyptiaca, Mayer-Eymar). 



0. GiGANTicA, Solander (= Ostrea latissima, Deshayes ; 0. longirostris, 

 Lamarck). 



Alectryonia Clot-beyi, Bellardi (= Ostrea suharmata, Bellardi). 



A. SEMiPECTiNATA, Schafhseutl (= Ostrea snhorbicularis, Schafhfeutl ; 

 0. abscissa, ScliafhseutI ; 0. Martinsi, Archiac ; 0. alticostata, 

 Maj'er-Eymar). 

 *A. Mehemeti, Oppenheim. 



A. Bellardii, Oppenheim (= Ostrea {Alectryonia) Heherti, Mayer- 

 Eymar, non Coquand). 



Family ANOMIID^. 

 Carolia placunoides, Cantraine {= Plactina placenta, Cailliaud, non 

 Lamarck). 



Family PECTINID^. 

 PsEUDAMUSiUM MoELHENSis, Mayer-Eymar. 



Family SPONDYLID^. 



Plicatula polymokpha, Bellardi (= Terehratella pyramidarum, Fraas; 



Plicatula abundans, Mayer-Eymar ; P. Bovensis, Oppenheim, jt;«/-s), 

 P. Bellardii, Mayer-Eymar [= Plicatula Bovensis, De Gregorio ; 



P. polymorpha, Bellardi, pars). 

 P. INDIGENA, Mayer-Eymar {^Plicatula Cairensis, Mayer-Eymar; 



P. Bovensis, Oppenheim, pars). 

 *P. Schweinfcrthi, Oppenheim. 

 Spondylus ^gyptiacus, R. B. Newton. 

 S. llouAULTi, Archiac. 

 S. PERHORRiDus, Oppenheim. 



Family PTERIIDaE { = Aviculida;). 



Vulsella crispata, P. Fischer {= Vulsella lingulata, Lamarck; 

 V. Cailliaudi, Zittel ; V. deperdiia, Mayer-Eymar). 

 *V. lignaria, Oppenheim. 

 *V. Moeluensis, Oppenheim. 



Y. cnAMiFORMis, Maver-Evmar. 



