PLATE VLE, 
Fie. 
1. Cerithium quadrilineatum, Rim. Blue Wyke Sands. My collection. (Page 
145.) 
2a. Cerithium muricatum, Sow. Dogger, Blue Wyke. One of Sowerby’s types, 
British Museum. (Page 146.) 
26. The same. Group of shells in Dogger matrix. My collection. 
3. Cerithium muricatum var. trilineata. Scarborough Limestone. York 
Museum. (Page 147.) 
4. Cerithiwm gemmatum, Morris and Lycett. Scarborough Limestone. British 
Museum. (Page 147.) 
5a,5b,5¢. Cerithium vetustum, Phil. Scarborough Limestone, Pickering Cliff. 
My collection. (Page 148.) 
5 d. Variety. Leckenby collection. 
6 a. Cerithium vetustum-majus, Hudl. Dogger, Blue Wyke. My collection. (Page 
150.) 
6 b. The same. Leckenby collection. 
7. Cerithium vetustum var. seminuda, Hudl. Dogger, Blue Wyke. Leckenby 
collection. (Page 151.) 
Sa—f. Cerithium subscalariforme, D’Orb. var. spinicostata, Wright, MS. 
Sowerbyi-bed, Bradford Abbas. My collection. (Page 151.) 
9. Cerithium subscalariforme, D’Orb., var. in the Humphriesianus-zone, Oborne. 
My collection. (Page 153.) 
10 a. Cerithium subscalariforme, D’Orb., var. in the Parkinsoni-zone (? granulato- 
costatum, Mimst.). Grove near Castle Cary. (Page 153.) 
10 b. The same from another locality. My collection. 
11. Cerithium subabbreviatum, D’Orb. P,, Burton Bradstock. My collection. 
(Page 154.) 
2. ? Cerithium obesum, sp. nov. P,, Vitney Cross. My collection. (Page 154.) 
13. Cerithium subglabrum, sp. nov. Sowerbyi-bed, Bradford Abbas. My collection. 
(Page 155.) 
14. Cerithium, species or variety. Sowerbyi-bed, Bradford Abbas. My collection. 
(Page 155.) 
15. Cerithiwm, species or variety. Sowerbyi-bed, Bradford Abbas, Whidborne 
collection. (Page 156.) 
