GASTEROPODA. 99 



Cerithinella ? sp., W. H. Hudleston, Brit. Jurass. Gasterop. Inf. 

 Ool. (1890), pi. xii, f. x. Nerincea ? cingenda (Sowerby), 

 W. H. Hudleston, G. M. dec. 3, I (1884), pi. iv, f. 9, 9 a, p. 112. 

 Dogger Series ; Blue Wyke. Leek enby Collection. 



Cerithium abbreviatum, J. Leckenby, Q. J. G. S. xv (1859), 

 pi. iii, f. 12, p. 13. Kellaways Rock; the Castle Rock, Scar- 

 borough. Leckenby Collection. 



C. bicinctum, W. H. Hudleston, G. M. dec. 2, vn (1880), pi. xvi, 



f. 4 a, b, p. 483. Coral Rag; Malton (probably Langton Wold). 



Leckenby Collection. 

 C.? caninum, v. Fibula canina. 

 C. circe, d'Orbigny, W. H. Hudleston, Brit. Jurass. Gasterop. 



Inf. Ool. (1889), pi. x, f. 4, p. 168. Inferior Oolite; Bridport. 

 C. comma, Mtinster, W. H. Hudleston, Brit. Jurass. Gasterop. 



Inf. Ool. (1889), pi. x, f. 2, p. 167. Inferior Oolite (Cadomensis- 



bed); Oborne, near Sherbome. 



C. comma, Munster, var. near to C. unitorquatum, Hebert and 

 Deslongchamps, W. H. Hudleston, Brit. Jurass. Gasterop. Inf. 

 Ool. (1889), pi. x, f. 3, p. 168. Inferior Oolite (Parkinsoni-zone); 

 Bridport Harbour. 



C. (Kilvertia) comptonese, v. Exelissa weldonis. 



C. costigerum, Piette, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xli, f. 11, 11 a, b, p. 92. Forest Marble; Laycock. 

 Walton Collection. 



C. culleni, v. Cerithium muricatum var. culleni. 



C. cf. grandineum, Buvignier, W. H. Hudleston, G. M. dec. 2, vn 

 (1880), pi. xvi, f. 2 a, b, c, p. 482. Coral Rag; Ayton, near 

 Scarborough. Leckenby Collection. 



C.? hemicinctum, J. Lycett, Supp. Mou. Moll. Gt. Ool. etc. (1863), 

 pi. xli, f. 17, p. 91. Forest Marble; Laycock. Walton Col- 

 lection. 



C. leckenbyi, W. H. Hudleston, G. M. dec. 3, I (1884), pi. iii, 

 f. 12, p. 61, and Brit. Jurass. Gasterop. Inf. Ool. (1889), pi. ix, 

 f. 4, p. 158. Dogger Series ; Blue Wyke. Leckenby Collection. 



C. marollinum, d'Orbigny, W. Keeping, Foss. Upware and 

 Brickhill (1883), pi. iii, f. 6, p. 93. Lcnuer Gre^.mnd; Upware. 



72 



