182 JURASSIC BIVALVIA AND GASTROPODA 



N. bank of Mandawa-Namakongoro stream, between telegraph line and Lindi- 

 Kilwa road, about i mile W. of Mandawa (loc. WA 794). 9 22' 24" S., 39 ° 26' 9" E. 

 M.-U. Kimmeridgian. 



Bathrotomaria aitkeni sp. now 



N. bank of Mandawa-Namakongoro stream, about 1 mile W. of Mandawa (loc. 

 WA 812, WA 2001). 9 22' 24" S., 39° 26' 6" E. M.-U. Kimmeridgian. 

 Pseudomelania (Oonia) aitkeni sp. no v., Nerinella mandawaensis sp. nov. 



Along Mandawa-Namakongoro stream, about 200 yards above confluence with 

 Mandawa stream (loc. WA 817). 9 22' 28" S., 39 26' 4" E. M.-U. Kimmeridgian. 

 Bathrotomaria aitkeni sp. nov. 



Along Mandawa-Namakongoro stream, about £ mile above confluence with Man- 

 dawa stream (loc. WA 823). 9 22' 40" S., 39 26' 2" E. M.-U. Kimmeridgian. 

 Bathrotomaria aitkeni sp. nov. 



About 1 mile N. of Manyuli, near Lindi-Kilwa road (loc. WA 944). 9 17' 58" S., 

 39 24' 6" E. M.-U. Kimmeridgian. 

 Pseudomelania vittata (Phillips). 



\\ miles N.W. of Mandawa (loc. WA 971). 9 21' 34" S., 39 26' 3" E., M.-U. 

 Kimmeridgian. 



Lissochilus stremmei Dietrich. 



£ mile up Nchia stream, 2 miles W.N.W. of Mandawa (loc. WA 1005, 1180). 9 

 21' 36" S., 39 25' 10" E. Callovian. 



Astarte aitkeni sp. nov., Pseudomelania aspasia (d'Orbigny), Bourguetia sae- 

 manni (Oppel), Ampullospira quennelli sp. nov., Nerineidae, gen. et sp. indet. 



f mile N.W. of Mbinga (loc. WA 1156). 9 25' 43" S., 39° 26' 39" E. Upper 

 Kimmeridgian. 



Purpuroidea aff. gigas (Thurmann & Etallon). 



Along Lonji-Runjo stream at a point i\ miles W. of Mandawa (loc. WA 1220). 

 9° 22' 2" S., 39 25' 21" E. Callovian. 

 Pseudorhytidopilus lonjiensis sp. nov. 



Along Lonji stream, a little E.N.E. of Nandenga hill (loc. WA 1287). 9 21' 44" S., 

 39 24' 25" E. Bathonian-Upper Oxfordian part of Mandawa-Mahokondo Series ; 

 probably Callovian. 

 Globular ia sp. 



Along Lonji stream, a little E.N.E. of Nandenga hill (loc. WA 1345). 9 21' 46" S., 

 39 24' 29" E. Callovian. 



Pseudomelania aff. aspasia (d'Orbigny), Ampullospira quennelli sp. nov. 



