PLATE 30 



Fig. 1. Nerinella mandawaensis sp. nov. Middle-Upper Kimmeridgian. Mandawa- 

 Namakongoro stream, about 1 mile W. of Mandawa, Tanganyika. Paratype, GG. 10334, 

 x 11 .............. p 



Figs. 2a, b. Same species, horizon and locality. Holotype, GG. 10333 : a, X 1 ; 

 b, x 2 . . . . . . . . . . . . p. 171 



Fig. 3. Same species, horizon and locality. Paratypes, GG. 10335, one seen in axial 

 section (partly retouched), x 2 . . . . . . . . . . P- 171 



Figs. 4a, b. Nerinella cutleri sp. nov. Upper Kimmeridgian, Nerinella Bed. Kipande 

 path, near Tendaguru, Tanganyika. Holotype, G. 46026 : a, x 1 ; b, x 2 . p. 170 



Fig. 5. Pseudonerinea clio (d'Orbigny). Upper Kimmeridgian. £ mile E. of 

 Nangororo, Tanganyika. GG. 10329, x 1 . . . . . . . .p. 172 



Fig. 6. Same species, horizon and locality. GG. 10330, axial section (partly retouched), 

 Xi .............. p. 172 



Fig. 7. Cossmannea hennigi (Dietrich). Upper Kimmeridgian, " Trigonia smeei " Bed. 

 Tributary of Maimbwi river, near Tendaguru, Tanganyika. G. 48914, x 1 . .p. 169 



Figs. 8a, b. Pieileia mandawaensis sp. nov. Bajocian (?), Pindiro Shales. Near site 

 of Mandawa well no. 1, Tanganyika. Holotype, GG. 10382 : a, x 1 ; b, x 4 . p. 161 



Figs, ga, b, c. Africoconulus kenyanus sp. nov. Upper Lias, Toarcian. Didimtu hill, 

 2 miles S. of Bur Mayo, N.E. Kenya. Holotype, GG. 10250 : a, apertural view ; b, aba- 

 pertural view ; c, base, all x 2 . . . . . . . . .p. 142 



171 



