PLATE XI. 



Figs. 

 1. Fibula angustivoluta, sp. nov. Lincolnshire Limestone, Weldon. My collec- 

 tion. (Page 174.) 



2 a. Fibula canina, Hudleston. Dogger, Blue Wyke. Bean collection, British 



Museum. 2 b. Another specimen from same locality. Leckenby 

 collection. (Page 175.) 



3 a.. Ceritella Lindonensis, sp. nov., var. pinguis. Lincolnshire Limestone. 



Sharp collection, British Museum. 3 b. Section of do. (Page 177.) 

 4. Ceritella Lindonensis, usual form. Lincolnshire Limestone, Weldon. My 



collection. 

 5 a. Exelissa strangulata, D'Arch., var. pisolitica. Pea-grit, Crickley. My collec- 

 tion. 5 b. Another specimen showing the apical whorls in good 

 preservation. (Page 178.) 



6. Exelissa strangulata, D'Arch., var. ovalis. Lincolnshire Limestone, Weldon. 



My collection. 



7. Exelissa pulchra, Lycett. Lincolnshire Limestone, Ponton. My collection. 



(Page 179.) 

 8 a. Exelissa Weldonis, Hudleston. Millepore Rock of Yorkshire coast. Leckenby 



collection. 8 b. Specimen from the Lincolnshire Limestone, Weldon. 



My collection. (Page 179.) 

 9. Exelissa normanniana, D'Orb. Stoford. My collection. (Page 180.) 



10. Cryptaulax scobina, Desl. Base of I. 0. sands, Nailsworth. Witchell collec- 



tion. (Page 181.) 



11. Cryptaulax scobina, Desl., var. approaching G. tortilis, H. & D. I. 0. sands, 



Nailsworth. Jermyn Street Museum. 

 12ft. Cryptaulax tortilis, Hebert & Desl., var. with four spirals, Parlcinsoni-zone, 

 Aston. 12 b. Do. from same locality with three spirals. 12 c. Do. large 

 specimen with four spirals from Cadomensis -bed, Oborne. My collec- 

 tion. (Page 182.) 



13. Cryptaulax papillosa, Desl. Parhinsoni -zone, Grove. My collection. (Page 



183.) 



14. Cryptaulax, cf. undulaia, Quenst. Parlcinsoni-zone, Bridport Harbour. 



Woodwardian Museum, x. Copy figure of " Turritella " undulata, 

 Quenst. Heb. and Desl., Foss. de Montreuil-Bellay, pi. vii, 13. 

 (Page 184.) 

 15 ft, 15 b, 15 c. Cryptaulax contorta, Desl. P l5 Burton Bradstock. My collec- 

 tion. (Page 185.) 



