ig6 JURASSIC BIVALVIA AND GASTROPODA 



150, 16/221). 3 55' N., 41 ° 28' E. (Joubert i960 : 26). Kimmeridgian, Hereri 



Shales. 



Grammatodon (Indogrammatodon) irritans (Hennig), Mytilus {Falcimytilus) 

 jurensis Roemer, Eopecten thurmanni (Brauns), Chlamys curvivarians (Dietrich), 

 Liostrea sp., Exogyra nana (J. Sowerby), Lucina sp., Protocardia (Tendagurium) 

 bannesiana (Contejean), Ceratomyopsis striata (d'Orbigny), Ceratomya excent- 

 rica (Roemer), Bourguetia saemanni (Oppel), Procerithiidae, Harpagodes sp. 



1 mile W. of Melka Dakacha (cited as " Daua valley 18^ miles E. of Rahmu ") 

 (loc. 16/33). 3° 58' N., 41 29' 30" E. (Ayers 1952 : 26). Upper Kimmeridgian, 

 Dakacha Limestones. 



Trochalia depressa (Voltz). 



6f miles S.W. of the Raiya hills and S.E. of Garba Raiya (loc. 16/52). 3 44' N., 

 41 ° 20' E. Upper Kimmeridgian, Dakacha Limestones. 

 Fimbria sp. 



N. of Figfirya, northern Raiya hills (loc. 16/165). 3 50' N., 41 ° 24' E. Upper 

 Kimmeridgian, Dakacha Limestones. 



Liostrea sp., Protocardia sp., Quenstedtia jouberti sp. nov., Homomya sp., 

 Harpagodes thirriae (Contejean), Globularia hemisphaerica (Roemer). 



1 mile S.W. of Melka Dakacha (cited as " S. of Rahmu-Mandera road, 19 miles E. 

 of Rahmu ") ( loc. 16/31). 3 57' N., 41 30' E. (Ayers 1952 : 24). Upper Kim- 

 meridgian, Dakacha Limestones. 



Harpagodes thirriae (Contejean). 



10J miles S.W. of the Raiya hills (loc. 16/55). 3° 43' N., 41 ° 14' E. (Ayers 1952 : 

 24). Upper Kimmeridgian, Dakacha Limestones. 

 Harpagodes thirriae (Contejean). 



3 miles N.E. of Melka Dakacha (loc. 16/201). 3 59' N., 41 33' E. (Joubert i960 : 

 28). Upper Kimmeridgian, Dakacha Limestones. 



Modiolus virgulinus (Thurmann & Etallon), Modiolus (Inoperna) perplicatus 

 (Etallon), Lopha gregarea (J. Sowerby), Myophorella sp., Rutitrigonia stefaninii 

 Venzo, Mactromya quadrata (Roemer), Harpagodes thirriae (Contejean), Globu- 

 laria hemisphaerica (Roemer). 



Melka Dakacha (loc. 16/192, 16/193). 3 57' N., 41 ° 31' E. (Joubert i960 : 28). 

 Upper Kimmeridgian, Dakacha Limestones. 



Ctenostreon proboscideum (J. Sowerby), Globularia hemisphaerica (Roemer), 

 Trochalia depressa (Voltz), Actaeonina ? sp. 



2 miles S. of Melka Dakacha (Iocs. 16/157, 16/209). 3 57' N., 41 ° 30' E. Upper 

 Kimmeridgian, Dakacha Limestones. 



