SUPPLEMENT, PLATE XXIV. 

 Discitae hemera. 



FigS. 1 — 4. — FoNTANNESIA BOWERL (J. B ' UchlUUl) . 



Fig. 1. — Side view of the type specimen refigured. From a heap of stones on 

 the roadside, Babylon Hill (Anbury Quarry), Bradford Abbas, Dorset. Collected 

 by the late Mr. Frank Monk, and kindly lent by his father to be figured in this 

 work. The specimen is now in the British Museum — Natural History. (Page 

 cxc.) 



Fig. 2. — The lateral auricle of the other side. 



Fig. 3. — Apertural view. 



Fig. 4. — Peripheral view. 



Goncavi or Discitae hemera. 



FigS. 5, 6. FoNTANNESIA CONCENTRICA, S. BilchilUlH. 



Fig. 5. — Side view, showing lateral auricle. Louse Hill, Halfway House 

 (Compton), Dorset. (Page cxci.) 

 Fig. 6. — Peripheral view. 



Fig. 7. — Fontannesia AuuiTA, S. BucJcman. 



Fig. 7. — Side view, showing large auricle. Halfway House (Compton), 

 Dorset. Collected by Mr. D. Stephens, F.Gr.S. (Page cxc.) 



Discitae hemera. 



FigS. 8 — 11. — FONTANNBSIA OBRUTA, S. Blichliail. 



Fig. 8. — Side view of a wholly septate example. " Fossil Bed," Bradford 

 Abbas, Dorset. Collected by Mr. Stephens. (Page clxxxix.) 



Fig. 9.— Front view. 



Figs. 10, 11. — Two suture lines — one to supplement the other. Fig. 11 is 

 about the fifth line beyond fig. 10. 



(For figures of allied species see Plates XLVI, XLVII, LXV.) 



