PLATE XLIII. 



Fig. 

 1 a, I b. Activonina {Cylindrobullina) cz«e;Tffl, Hudleston. Scarborough Liaiestone, Cloughton Wyke. 

 Leckenby Collection, Woodwardian Museum. Back and frout ; natural size. (Page 474.) 



2. A. gigantea, Deslongchamps (short variety). Inferior Oolite of the Cotteswolds. .Termyn Street 



Museum. Front ; natural size. (Page 474.) 



3. The same. Dean and Chapter pit, Lincoln. Front slightly enlarged. 



4. A. gigantea, var. attenuata (near to A. acuta, d'Orb.). Dean and Chapter pit, Lincoln. 



Front X 2. (Page 475.) 



5. A. (J Trocliactieonind) tumidula, Lycett. Scarborough Limestone, White Nab. Bean Collection' 



British Museum. Front X 2. (Page 476.) 

 G. A. antiqua, Lycett. Spinosa-st&ge, Eodborough Hill. Jermyn Street Museum. Front ; natural 

 size. (Page 477.) 



7. A. convoluta, Lycett. Spinosa-^t&ge, Eodborough. Jermyn Street Museum. Front ; natural 



size. (Page 477.) 



8. A. {Trochacfaionina) cf. J^sparcyensis, d'Archiac (micromorph). Lincolnshire Limestone, 



Weldon. Front x If. (Page 476.) 



9. A. {Trocliactseonina') ? tumidula, Lycett. Lincolnshire Limestone, Weldon. Front x 2- 



(Page 476.) 

 10. Bulla Favrei, Lycett. Inferior Oolite, Avening. Jermyn Street Museum. Front ; natural 



size. (Page 481.) 

 11 a, 11 b. B. (Hydatina) undulata, Bean (micromorph). Scarborough Limestone, Pickering Cliff. 



Front X If ; apical X 3. (Page 482.) 

 12. Ci/lindrifes iurriculatus, Lycett. Lincolnshire Limestone, Weldon. Front x 2. (Page 478.) 



13 a, 13 b. C. tabulatus, Lycett, var. Weldonis. Lincolnshire Limestone, Weldon. Jermyn Street 



Museum. Front and apical x 3. (Page 480.) 



14 rt, 14 J. C. tabulatus,'L-^Q,Qtt. Inferior Oolite, Nailsworth. Jermyn Street Museum. Front x 1^ ; 



apical X 2. (Page 479.) 



15 a, 15 b. C. aftenuatus, Lycett. Pea-grit, Leckhampton. Front X 2\ ; apical x 3. (Page 479.) 



16 «, 10 6. C cyZ/nrfric?fs, Morris and Lycett (Inf. Ool. var.). ? Nailsworth. Jermyn Street Museum. 



Front and apical x 2. (Page 481.) 



17. C. brevispira, sp. uov. Lincolnshire Limestone, Weldon. Front x 3. (Page 479.) 



18. The same. Another specimen from the same locality. Apical x 5. 



19. Chilodontuidea oolitica, sp. nov. Beaminster. Front x 2\. (Page 491.) 



20 a. The same. CoHC«t)Ms-bed, Bradford Abbas. Front x 2|. Fig. 20 J, aperture x 5. 



21 a, 21 b. Bracliytrema Pontonis, sp. nov. Lincolnshire Limestone, Ponton. Back and front X 2\. 



(Page 484.) 



22 a, 22 b. Cerithium {Colina), Lycetti, sp. nov. Inf. Ool., Nailsworth. Jermyn Street Museum. 



Front (portion) and back x 2^. (Page 485.) 



23. Bracliytrema species. Irony Nodule-bed, Burton Bradstock. Front x 2. (Page 485.) 



24. 24 b. ? Bracliytrema ^' prietenue'^ Oolite Marl,Notgrove. Front and back x 8. (Page 484.) 



25. Ceritella Stokensis, sp. nov. Lincolnshire Limestone, Stoke Lodge. Front x 5. (Page 487.) 



26. C. tumidula, Lycett, var. angusta. Lower Limestone (of Witchell), Nailsworth. Front x 6. 



(Page 4S6.) 



27. Valvata comes, sp. nov. Paludina-hed, Langton Bridge. Front x 7. (Page 489.) 



