lib JURASSIC BIVALVIA AND GASTROPODA 



Pholadomya lirata (J. Sowerby) 



PI. 20, fig. 8 



[8180. Cardita? lirata J. Sowerby : 220, pi. 197, fig. 3. 



1910. Pholadomya cavinata Goldfuss ; Dacque : 31, pi. 5, fig. 7. 



1916. Pholadomya cavinata Goldfuss ; Douville : 55, pi. 6, fig. 8. 



1935a. Pholadomya lirata (J. Sowerby) ; Cox : 190, pi. 21, figs. 8, 9. 



1939. Pholadomya carinata Goldfuss ; Stefanini : 259, pi. 27, fig. 2. 



1948. Pholadomya lirata (J. Sowerby) ; Cox & Arkell : 43. 



i960. PlioladoDiva lyrata J. de C. Sowerby ; Joubert, pi. 11, fig. 6. 



Material. Several specimens. 



Localities and horizons. Kidugallo Station and \\ miles to the east, Central 

 Railway, Tanganyika ; Bajocian, Station Beds. 2 miles E. of Magindu Station, 

 Central Railway, Tanganyika ; Callovian. 3 miles W. of Melka Biini, N.E. Kenya ; 

 Callovian, Rukesa Shales. 



Remarks. This widespread species was discussed by me in 1935. The earlier 

 authors who recorded it from East Africa cited it under the name P. carinata Gold- 

 fuss. 



Pholadomya ovalis (J. Sowerby) 

 PI. 20, fig. 1 



1819a. Lutraria ovalis J. Sowerby : 47, pi. 226, fig. 1 only. 



1842. Pholadomya oindum Agassiz : 119, pi. 3, figs. 7-9 ; pi. 3ft, figs. 1-6. 



1874. Pholadomya ovulum Agassiz ; Moesch : 48, pi. 20, figs. 1-11. 



1910. Pholadomya angustata (Sow.) ; Dacque : 32, pi. 5, fig. 8 (non Sowerby sp.). 



1929. Pholadomya protei (Brongniart) ; Weir : 33, pi. 3, fig. 10 {non Brongniart sp.). 



1948. Pholadomya ovalis (J. Sowerby) ; Cox & Arkell : 44. 



i960. Pholadomva ovalis (J. Sowerby) ; Joubert, pi. 11, figs. 8a, b. 



Material. Two specimens (nos. L. 98277, L. 92075). 



Localities and horizons. Hagardulun, 25 miles N.E. of Tarbaj, N.E. Kenya ; 

 Bathonian-Callovian, Bur Mayo Limestones. Kulong, 2 miles S.W. of Muddo Erri, 

 N.E. Kenya ; Callovian [?-Lower Oxfordian], Muddo Erri Limestones. 



Pholadomya protei (Brongniart) 

 1821. Cardium protei Brongniart : 554, pi. 7, figs. 7a-c. 



1872. Pholadomya protei (Brongniart) 



1875. Pholadomya protei (Brongniart) 



1935a Pholadomya protei (Brongniart) 



1939. Pholadomya protei (Brongniart) 



de Loriol : 169, pi. 10, figs. 13-15. 



Moesch : 79, pi. 30, figs. 1, 2. 



Arkell : 333, pi. 46, figs. 8, 9 ; pi. 47, figs. 1-4. 



Stefanini : 263, pi. 27, figs. 6-8. 



Material. One specimen (no. LL.11807). 



Locality and horizon. Just W. of Mabokweni, 4 miles N.W. of Tanga, Tan- 

 ganyika ; Kimmeridgian. 



Remarks. This species, which has been misidentified by some authors, is 

 characterized by its relatively short outline and by its small number (3-6) of costae, 



