PLATE XII. 
Fra. 
la, 1b. Cerithinella Bajocensis, sp.nov. ‘ Sowerbyi-bed,’’’ Bradford Abbas. My 
Collection. (Page 186.) 
2. Cerithinella Bajocensis, var. drosera. Murchisone-zone, Bradford Abbas. My 
Collection. 
3. Cerithinella Bajocensis, var. melitta. Beaminster district. My Collection. 
4a. Cerithinella Brodiei, sp. nov. Freestones, Leckhampton. Brodie Collection. 
(Page 187.) 
4b. Cerithinella Brodiei, ? early stage. I. O., Nailsworth. Jermyn Street 
Museum. 
5. Cerithinella, species or variety. Stoford. My Collection. 
6a. Pseudalaria Etheridgu, Tawney, in matrix. 6b. Detached specimen. 6c. 
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. Murchisonx-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. Parkinsoni-zone, Over Harford. 11. Section 
of specimen from Parkinsoni-zone, Aston. My Collection. (Page 191.) 
a. ? Oerithinella (the Nerina 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.) 
13a Nerinella gracilis, Lycett ; type refigured. Oolite Marl, Nailsworth. Jermyn 
Street Museum. 13). 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 Asit is now generally admitted that this appellation is inapplicable, the so-called “‘ Sowerbyi-bed” 
will in future be quoted as the “‘ concavus-bed” or “ concavus-zone.” See p. 44 of this Monograph. 
