SUPPLEMENT.— LUCYA. 



lxxv 



1. Lucya cadugeifeea, 8. Buckman. Plate XXI, figs. 10, 11, Plate A, fig. 5; 



Suppl., Fig. 30 in text. 



1889. Ludwigia Lucyi, var. This Monogr., PL xxi, figs. 10, 11 ; PI. A, fig. 5. 

 1902. Lucya caducifera, Emend. Amm. Num., p. 4. 



Description.- — Platysubleptogyral, costati-gradumbilicate, subcrassicostate, sub- 

 obsoleticarinate. 



Remarks. — The very inconspicuous carina on a somewhat flattened periphery is 

 a noticeable feature. 



Locality and Stratum. — Presumably from the neighbourhood of Halfway House, 

 Dorset, and from the Rh. ringens-bed (Collection, W. C. Lucy). 



Date of Existence. — Bradfordensis hemera, presumably. 



2. Lucya makginata, S. Bud-man. Fig. 31 in text. 



Description. — Platyleptogyral, gradumbilicate, subcrassicostate to striate. 



WT-. 





<: 



Km. 31. — Lucya marginata. Bradford Abbas. 



Remarks. — The radial line changes to biarcuate in the striate stage. 



Distinction. — From Lucya caduceifera, smaller umbilicus, more acute periphery, 

 greater compression. 



Localities and Strata.— Dorset : Bradford Abbas, Fossil Bed, presumably lower 

 part ; Stoke Knap, Building Stone. 



Date of Existence. — Goncavi hemera, presumably. 



