108 GASTEROPODA. 



pi. i K, f. 44, pi. i L, f. 21, p. 294. Fvj. 21, May Hill Beds; 



Mullock, Balqukarran. Fig. 44, Middle Bala; Allt-yr- Anker. 



According to Salter (Cat. Camb. Sil. Foss. p. 83) the specimen 



from Mullock is not M. simplex. 

 Murchisonia torquata, F. McCoy, Brit. Palaeoz. Foss. (1852), 



pi. i L, f. 19, 19 a, p. 294. Upper Ludlotv; Spital, Kendal. 

 M. verneuiliana, De Koninck, J. Donald, Q. J. G. S. XLiii 



(1887), pi. xxiv, f. 6, 7, p. 626. Ga^-boniferous Limestone; Settle. 



Burrow Collection. 



M. verneuiliana var. kendalensis, v. Murchisonia kendalensis. 



Natica adducta, Phillips, var. canina, W. H. Hudleston, G. M. 

 dec. 2, IX (1882), pi. v, f. 7, p. 200. Dogger Series; Blue 

 Wyke. Leckenby Collection. 



N. (Euspira) alta, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xlv, f. 22, 22 a, p. 97. Forest Marble; haycock. 

 Walton Collection. 



N. arguta, Phillips, W. H. Hudleston, G. M. dec. 2, vii (1880), 

 pi. ix, f. 5 a, b, p. 297. Co7-al Rag? Slingsby. Leckenby 

 Collection. 



N. calypso, d'Orbigny, var. tenuis, W. H. Hudleston, G. M. 

 dec. 2, IX (1882), pi. v, f. 13, p. 202. Lower Calcareous Grit; 

 Cayton Bay. Leckenby Collection. 



N. levistriata, A. J. Jukes-Browne, Q. J. G. S. xxxiii (1877), 

 pi. xxi, f. 6, p. 498. Cambridge Greensand ; Cambridge. 



N. occlusa, S. V. Wood, Crag Mollusca i (1848), pi. xii, f. 4 a, b, 

 p. 146. Bridlington Crag; Bridlington. Leckenby Collection. 



N. parva, Sowerby. Naticopsis? glaucinoides (Sowerby), F. 



McCoy, Brit. Pateoz. Foss. (1852), pi. i K, f. 35, 35 a, p. 302. 



Upper Ludloiv ; Benson Knot, near Kendal. 

 N. proxima, W. H. Hudleston, G. M. dec. 2, ix (1882), pi. v, 



f. 8 a, b, p. 200. Dogger ; Blue Wyke. Leckenby Collection. 

 N. punctulata, J. F. Blake, Q. J. G. S. xxxi (1875), p. 224. 



Kimeridge Clay ; Market Rasen. 

 N. punctura (Bean), W. H. Hudleston, G. M. dec. 2, ix (1882), 



pi. v, f. 11, 12, p. 201. Fig. 11, Cornbrash ; Scarborough. 



Fig. 12, Kellaways Rock ; Scarborough. Leckenby Collection. 



