PLATE XXXIV. 



Fig. 



1. Pleurotomaria subglabra, sp. nov. Humphriesianus-zone, Oborne. Front. 



(Page 405.) 



2. Another specimen. Humphriesianus-zone, Oborne. Base. 



3. PL circumsulcata, d'Orbigny. Humphriesianus-zone of the Sherborne district. 



Base. (Page 404.) N.B. — The spiral angle and general character of 

 this specimen resemble fig. 10 on Plate XXXIII. 



4. PL Bessiua, d'Orbigny. Parkinsoni-zone, ? Halfway House. Nodular variety 



resembling the Normandy types. Front. (Page 406.) 



5. Another specimen. Parkinsoni-zone, Burton Bradstock. N.B. — This is a 



small and rather depressed specimen of the variety most usual in the 

 English beds. 



6. PL Agatha, d'Orbigny. ( = PL mutabilis, var. coslata, Deslong.) Parkinsoni- 



zone, ? Halfway House. Front. (Page 402.) 



7. PL Agatha, d'Orbigny, var. Sandersii, Tawney. Dundry. Bristol Museum. 



Back. (Page 403.) 



8. PL elongata, Sow., var. turrita, Deslongchamps. Parkinsoni-zone, Burton 



Bradstock. Back and front. (Page 401.) 



9. PL Obomeiisis, sp. nov. Marl with green grains, Oborne. Front. (Page 404.) 



10. PL distingue nd a, Tawney. Dundry. Bristol Museum. Front and back. 



(Page 407.) 



11. PL Dundriensis, Tawney. Dundry. Bristol Museum. Base and front. 



(Page 407.) 



12. PL Athulia, d'Orbigny. Crewkerne Station, ? Parkinsoni-zone. Base and 



front. (Page 409.) 



