108 
GASTEROPODA. 
pl. ik, f£ 44, phi, fi 21, p. 294. My. 21, May Hill Beds ; 
Mullock, Dalquharran. 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. Paleeoz. Foss. (1852), 
M. 
pl. it, f 19,19 a, p. 294. Upper Ludlow; Spital, Kendal. 
verneuiliana, De Koninck, J. Donald, Q. J. G. S. xLur 
(1887), pl. xxiv, f. 6,7, p. 626. Carboniferous Limestone; Settle. 
Burrow Collection. 
M. vernewiliana var. kendalensis, v. Murchisonia kendalensis. 
Na 
tica adducta, Phillips, var. canina, W. H. Hudleston, G. M. 
dec. 2, Ix (1882), pl. v, f. 7, p. 200. Dogger Series; Blue 
Wyke. Leckenby Collection. 
. (Buspira) alta, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. 
(1868), pl. xlv, f. 22, 22 a, p. 97. Forest Marble; Laycock. 
Walton Collection. 
. arguta, Phillips, W. H. Hudleston, G. M. dec. 2, vir (1880), 
pl. ix, f. 5 a, b, p. 297. Coral Rag? Slingsby. Leckenby 
Collection. 
. calypso, d’Orbigny, var. tenuis, W. H. Hudleston, G. M. 
dec. 2, 1x (1882), pl. v, £13, p. 202. Lower Calcareous Grit ; 
Cayton Bay. Leckenby Collection. 
. levistriata, A. J. Jukes-Browne, Q. J. G. S. xxxiu (1877), 
pl. xxi, f£. 6, p. 498. Cambridge Greensand ; Cambridge. 
. occlusa, S. V. Wood, Crag Mollusca 1 (1848), pl. xii, f. 4a, 6, 
p. 146. Bridlington Crag; Bridlington. Leckenby Collection. 
. parva, Sowerby. Naticopsis? glaucinoides (Sowerby), F. 
McCoy, Brit. Paleeoz. Foss. (1852), pl. i K, f. 35, 35 a, p. 302. 
Upper Ludlow ; Benson Knot, near Kendal. 
. proxima, W. H. Hudleston, G. M. dec. 2, 1x (1882), pl. v, 
f. 8a, b, p. 200. Dogger; Blue Wyke. Leckenby Collection. 
. punctulata, J. F. Blake, Q. J. G. S. xxx1 (1875), p. 224. 
Kimeridge Clay; Market Rasen. 
. punctura (Bean), W. H. Hudleston, G. M. dec. 2, 1x (1882), 
pl. v, f 11, 12, p. 201. ig. 11, Cornbrash ; Scarborough. 
Fig. 12, Kellaways Rock ; Scarborough. Leckenby Collection. 
