540 ON FOSSILS FROM TH'jS INFERIOR OOLITE. 



12,12 a. Kellia Ether idgii. Eight valve and hinge, botli magnified ; Bar- 



nack. B.M. 

 13. . Hinge of left valve, magnified ; Barnack. B.M. 



14, Astarte anatiformis. Bight valve ; Nailsworth. J. 



15, 15 a. Astarte sufflata, Bom. Left valve and magnified surface ; Dun- 



dry. B. 



16, 16<x. . Interior and profile of another specimen; Dun- 



dry. B. 



17, 17 a. Gouldia ? ovalis (Quenst.). Bight valve and interior of same ; 



Bradford Abbas. 



18, 18 a. mitralis. Valve and hinge, magnified ; Bradford Abbas. 



19, 19 a. Cy-pricardia filoperta. Left valve and profile seen from above ; 



Dundry. B. 



20, 20 a. Opis spathulosus. Bight valve, and profile of the same. K. 



21, Myoconcha unguis. Left valve ; Dundry. B. 



22. implana. Brofile of both valves, seen from above ; Bradford 



Abbas. 



23, 23 a. Thracia leguminosa. Left ? valve, natural size and X 2 ; Dun- 



dry. B. 



24, 24 a. Myacites subsidens. Bight ? valve and profile ; Dundry. 



Blate XIX. 



1. Ancyloceras Waltoni, Morr. Burton Bradstock. 



2. Toxoceras Orbignyi, B. & S. Half-way House, near Yeovil. 



3. 3 a. Pecten puellaris : nat. size and enlarged. B.M. 



4. Astarte elegans, var. munda. Left valve ; Hardington. 



5. Myoconcha i-m/plana. Left valve ; Bradford Abbas. N.B. The pro- 



file of the same shell is given in Plate XVIII. fig. 22. 



6. Thracia Studeri, Ag. Valve ; Bradford Abbas. 



7. 7 a. Pholadomya callma. Left valve and profile ; Dundry. 



8. fortis. Left valve; Dundry. 



9. 9 a. Newtomi. Left valve and profile ; Bradford Abbas. 



10, 10 a. — ~ bellula. Left valve and profile ; Bradford Abbas. 



11, spatiosa. Left valve ; Dundry. B. 



12, 12 a, 125. Terebratula Tawneyi. Dorsal and lateral aspects and mag- 



nified portion of surface ; Dundry. 



13, 13 a, 13 6. Bhabdocidaris Thurmanni, var. regens. The upper and 



under surfaces of the portion of a spine and a section of the same, 

 nat. size ; Dundry. 



14, 14 a. Chirodota convexa. Spicule seen from front and rear, highly 



magnified ; Burton Bradstock. 



15, 15 a. gracillina. Spicule seen from front and rear, similarly 



magnified ; Burton Bradstock. 



For the Discussion on this paper, see p. 553. 



