PLATE XL. 



Fig. 



1 a, b. Pleurotomaria granulata, Sowerby. (Elevated variety with coarse granu- 



lation = var. ccelata, Deslong.) Sauzei-bed, Oborne. Front and 

 enlargement. (Page 440.) 



2 a — c. PL plicopunctata, Deslongchamps. Parkinsoni-zone, Burton Bradstock. 



Apical, base and front. (Page 442.) 



3 a — c. PL Pahmnon, d'Orbigny. Parkinsoni-zone, Vitney Cross. Apical, base 



and front. (Page 443.) 



4 a — d. PL phylax, sp. nov. Sauzei-bed, Oborne. Apical, front, base, and 



enlargement. (Page 441.) 

 ha, bb. PL trapeza, sp. nov. Parkinsoni-zone, Burton Bradstock. Base and 



front. (Page 444.) 

 6a, 6b. Nerita costulata, Deshayes. Pea-grit, Crickley. Front and back X 4 



(Page 332.) 

 7 a, 7 b. Nerita subrugosa, sp. nov. Scarborough Limestone, Scarborough. 



Apical and back X 4. (Page 334.) 

 8. Another specimen. Northampton Sand, Duston. Front X 4. 

 9 a, b. " Neritina snbtransverxa." Oolite Marl of the Cotteswolds. (Page 336.) 



