212 Mr. D. Sharpe on Paleozoic Fossils from South Africa. 



Cleidophorus ahbreviatus, Sharpe. PI, XXVII. fig. 3. 



C. testa transversim triangulato-ovata : laming intern^ maxima : cardine arcuato ; dentibus 

 minutis. 



Shell transversely ovate with prominent beaks ; anterior and posterior ends 

 regularly rounded : internal plate very large, and nearly reaching to the margin : 

 hinge-line arched ; teeth small. The external surface has not been seen. 



Length f of an inch ; breadth 1 inch. 



Found at Gydow Pass, in hard dark-coloured schist. 



Leda inornata, Sharpe. PI. XXVII. fig. 5. 



L. testa depressa, transversim lanceolato-ovata, valde inaequilaterali, concentrice striata, 

 antice rotundata, postice producta, subacuminat&. 



Shell depressed, transversely lanceolato-ovate, very inequilateral ; anterior end 

 broad and rounded ; posterior end produced : ventral margin regularly rounded : 

 valves covered with line concentric lines of growth. 



Length f of an inch ; breadth 1^ inch. 



Found at Hottentots Kloof, in a soft light-coloured micaceous sandstone. 



Leptodomus ? ovatus, Sharpe. PI. XXVII. fig. 7. 



L. ? testa transversim ovata, antice abbreviata, truncate, tumida, postice producta, rotundata, 

 concentrice lineati : umbonibus magnis anticis. 



Shell transversely ovate ; anterior end thick and truncated ; posterior end pro- 

 duced and gradually thinning down to the rounded posterior margin : two very 

 slight furrows extend from the beak to the posterior end : beaks large, rounded, 

 and close to the anterior end : valves covered with concentric lines of growth. 



Length 1^ inch ; breadth If inch ; thickness 1 inch. 



Found at Leo Hoek. 



The specimen does not show sufficient characters to determine the genus. 



The slight furrows on the posterior end are not sufiiciently shown in the figure. 



Sanguinolites ? corrugatus, Sharpe. PI. XXVII. fig. 8. 



S. ? testa transversim rhomboidea, medio depressa, concentrice corrugata : umbonibus pro- 

 minentibus, anticis : carina obtusa, ab umbone ad angulum ventrali-posteriorem extendente. 



Shell transversely rhomboidal, with a depression down the middle of each valve, 

 bounded by a broad, obtuse keel, which reaches from the umbo to the posterior 

 ventral margin : beaks prominent and close to the rounded anterior end : valves 

 covered with coarse concentric wrinkles and finer lines of growth. 



Length ^ inch ; breadth 1 inch ; thickness ^ inch. 



Found at Leo Hoek, in a nodule of hard dark-coloured siliceous rock. 



