PLATE XII. 



Fig. 

 1 a, lb. Cerithinella Bajocensis, sp. nov. " Sowerhyi-hed,"^ Bradford Abbas. My 

 Collection. (Page 186.) 



2. Cerithinella Bajocensis, var. drosera. Murchisonse-zone, Bradford Abbas. My 



Collection. 



3. Cerithinella Bajocensis, var. melitta. Beaminster district. My Collection. 



4) a. Cerithinella Brodiei, sj). noY. Freestones, Leckhampton. Brodie Collection. 

 (Page 187.) 



4 ft. Cerithinella Brodiei, ? early stage. I. 0., Nailswortb. Jermyn Street 

 Museum. 



5. Cerithinella, species or variety. Stoford. My Collection. 



6 a. Pseudalaria Etheridgii, Tawney, in matrix. 6 h. Detaclied specimen. 6 c. 

 Longitudinal section. " Sowerbyi-bed,'^ Bradford Abbas. My Collec- 

 tion. (Page 189.) 



7. Pseudalaria Etheridgii, var. from Beaminster district. My Collection. 



8. Pseudalaria granosa, sp. nov. Murchisofise-zone, Burton Bradstock. My 



Collection. (Page 190.) 



9. Pseudalaria jugosa, Bean. Dogger, Blue Wyke. Bean Collection, British 



Museum. (Page 190.) 



10. Aptyxiella subconica, sp. nov. ParMnsoni-zone, Over Harford. 11. Section 

 of specimen from Parkinsoni-zone, Aston. My Collection. (Page 191.) 

 X. ? Cerithinella (the Nerinsea cingenda, Sow., non Phil, of the Leckenby Collection). 

 Dogger, Blue Wyke. 



12. Nerinella gracilis, Lycett, slender variety. Oolite Marl, Longridge. My Col- 

 lection. (Page 196.) 



13 a Nerinella gracilis, hjcett; type refigured. Oolite Marl, Nailsworth. Jermyn 

 Street Museum. 13 b. The same. Oolite Marl, Longridge. My Col- 

 lection. (Page 196.) 



14. Nerinella conoidea, sp. nov. Oolite Marl, Longridge. My Collection. (Page 



197.) 



15. Nerinella (A 1). 16. Nerinella (A 2). 17. Nerinella (A 3). 18. Nerinella 



(A 4). Lincolnshire Limestone, Weldon. My Collection. (Page 197.) 



1 As it is now generally admitted that this appellation is inapplicable, the so-called " Sowerbyi-hed" 

 will in future be quoted as the " concavus-hed " or " concavus-zoue." See p. 44: of this Monograph. 



