﻿PLATE XXI. 



Fig. 



1. Pseudomelania procera, Deslongchamps. Subulate and corroded specimen, 



showing striato-punctate structure. Murchisonse-zone, Bradford 

 Abbas. My Collection (Stephens). (Page 237.) 



2. Euspira, cf. coronata, Morris and Lycett. Northampton Sand, Duston. 



Crick Collection. (Page 270.) 



3. Natica cincta, Phillips, cast, X ^. Lincolnshire Limestone, ? Denton. British 



Museum. (Page 266.) 



4. Natica cincta, Phillips, shell, X f. Coombe Hill, Deddington, Oxfordshire. 



My Collection. 



5. " Phasianella " Leymeriei, d'Archiac, var. Lindonensis. " Bastard " bed 



between the Northampton Sand and the Lincolnshire Limestone, 

 Lincoln. My Collection. (Page 253.) 



6. Pseudomelania laevigata, Morris and Lycett. X2. Scarborough Limestone, 



Cloughton Wyke. Figure compounded of two specimens, one in the 

 British Museum (type), the other in my Collection. (Page 244.) 



7. Rissoina obliquata, Sowerby. X 4. Lincolnshire Limestone, Weldon. My 



Collection. (Page 272.) 



8. Rissoina obliquata, Sowerby, var. parcicostata. X4. Lincolnshire Limestone, 



Ponton. My Collection. (Page 272.) 



9. Rissoina obliquata, Sowerby, var. inflata. X 4. Lincolnshire Limestone, 



Ponton or Barnack. British Museum. (Page 272.) 

 10 a. Rissoina obtusa, Lycett. X4. Pea-grit, Crickley. My Collection. 10 b. 

 The same specimen, XlO. (Page 273.) 



11. Rissoina gymnoides, sp. nov. X 6. Lincolnshire Limestone, Weldon. My 



Collection. (Page 273.) 



12. Amberleya capitanea, Miinster. Jurensis-zone, varia,bilis-beds, North Nibley. 



My Collection (Buckman). (Page 277.) 



13. Amberleya omata, Sowerby. Dundry. Bristol Museum ; probably one of 



Sowerby's types — -a worn specimen. (Page 279.) 



14. The same. Dundry. My Collection (Wilson) — an unworn specimen from the 



same locality. 



15. Amberleya omata, Sow., var. spinulosa, Miinst. (Bathis, d'Orb). Concavus-bed, 



Bradford Abbas. My Collection. 



16. Amberleya omata, var. abbas. Goncavus-bed, Bradford Abbas. My Collec- 



tion. Middle-sized specimen, showing the Purpurina-like mouth. 



17. 18. Portions of more adult specimens of A. omata, var. abbas, showing the 



modification of the aperture. Same locality and Collection. (Page 

 280.) 



