lii INFERIOR OOLITE AMMONITES. 



Localities and Strata. — Dorset : Chideock Quarry Hill, in the Wild Bed ; 

 Bradford Abbas, in the Paving Bed. 



Date of Existence. — Murchisonge hemera. 



2. Welschia kustica, S. Buclcman. Suppl., Plate IV, figs. 16 — 18. 



Description. — Platy-subpachygyral, angusti-gradumbilicate, parvicostate, sub- 

 fastigate. 



Distinction. — From obtusiformis, greater compression and less coarse orDament, 

 particularly in the umbilicus. The periphery is more acutely fastigate. There 

 is a slight difference in the radial curve. 



Localities and Strata. — Dorset : Stoke Knap, near Broad "Windsor, from the 

 Building Stone ; Louse Hill, near Sherborne, from the ringens bed, by matrix. 



Date of Existence. — Bradfordensis hemera. 



3. Welschia pagana, S. Buchnan. Plate XII, figs. 5 — 7; Suppl., Plate XI, 



fig. 32. 



1888. Liocebas bkadfokdense, vat. giganteum, This Monogr., PI. xii, fig?. 5—7. 



Description. — Platy-subleptogyral, subgradumbilicate, parvicostate. 

 Note. — The last few ribs in this specimen are shown rather too coarsely. 

 Distinction. — From rustica smaller costa?. 



Locality and Stratum. — Dorset : Stoke Knap in the Building Stone. 

 Date of Existence. — Bradfordensis hemera, presumably. 



XIV. Genus — Cosmogyria, 1 S. Buclcman. 



(Type — Cosmogyria obtusa, 2 Quenstedt, sp.) 



Definition. — Platy-subpachygyral, angustumbilicate ; subpaucisep- 

 tate, longi-angustilobate ; laterally subflexiradiate ; peripherally sub- Fl( 



line of 



smog, 

 ■jltus 



1 Koa-fitii, ornament ; yvpos, a whorl. 



auguliradiate, tabulate, parvi-nonsepti-carinate. 



2 In case fault should be found with the identification, I select as the type of the geuus the 

 specimen now figured, Suppl., PI. IV, figs. 10—12. 



