cviii INFERIOR OOLITE AMMONITES. 



Remarks. — A swelling or inflation of the body-chamber characterises the species 

 of this genus ; hence the name. The carina tends to decline on the swollen body- 

 chamber, both this decline and the swelling whorls being really atavic features. 

 The radial line is somewhat falcate to more or less biarcuate. 



1. (Edania inflata, 8. Buckman. Suppl., Plate XXI, figs. 13 — 15. 



Description. — Gradumbilicate, costate. 



Locality and Stratum. — Dorset : Bradford Abbas, Fossil Bed. 



'Date of Existence. — Discitx hemera. 



2. (Edania delicata, 8. Buckman. Suppl., Plate XXI, figs. 10 — 12. 



Description. — Gradumbilicate, subcostate. 

 Distinction. — From (Ed. inflata, smaller ornament. 

 Locality and Stratum. — Dorset : Bradford Abbas, Fossil Bed. 

 Date of .Existence. — Discitse hemera. 



3. (Edania lepta, 8. Buckman. Suppl., Plate XXI, figs. 4 — 6. 



Description. — Gradumbilicate parvidensicostate. 



Distinction. — From (Ed. delicata, smaller umbilicus, closer set, smaller costge. 

 Localities and Strata. — Dorset : Bradford Abbas, Fossil Bed, not uncommon 

 ♦Stoke Knap, Building Stone. 



Date of Existence. — Discitse hemera. 



4. (Edania falcigera, 8. Buckman. Suppl., Plate XXI, figs. 1 — 3a. 



Description. — Subgradumbilicate, obsolete-parvicostate to striate. 

 Distinction. — From <Ed. lepta, the more distant costse. 



Locality and Stratum. — Dorset : Bradford Abbas, Fossil Bed. 



Date of Existence. — Discitx hemera. 



5. (Edania paevicostata, 8. Buckman. Suppl., Plate XXI, figs. 7 — 9a. 



Description. — Subgradumbilicate, parvisubspissicostate. 



Distinction. — From (Ed. falcigera, more numerous costas which are more per 



