116 GASTEROPODA. 



Trochus csBlatulus, F. McCoy, A. M. N. H. ser. 2, vii (1851), 

 p. 49, and Contrib. Brit. Pal. (1854), p. 184, and Brit. Palaeoz. 

 Foss. (1852), pi. i K, f. 40, 40 a, p. 296. Woolhope Limestone; 

 Old Radnor, Presteign. 



T. cancellatus, Seeley, A. J. Jukes-Browne, Q. J. G. S. xxxili 



(1877), p. 498. T. tollotianus, Pictet and Roux, A. J. Jukes- 

 Browne, Q. J. G. S. XXXI (1875), pi. xiv, f. 7—9, p. 292. 

 Another specimen, Trochus {Trochodon) cancellatus, H. G. 

 Seeley, A. M. N. H. ser. 3, vii (1861), pi. xi, f. 15, p. 290. 

 Camhndge Green sand ; Cambridge. 



T. concavus, v. Trochus ziziphinus. 



T. constrictus, v. Holopea striatella. 



T. cf. dimidiatus, Sowerby, W. H. Hudleston, G. M. dec. 3, ii 

 (1885), pi. ii, f. 15, p. 58. Dogger Sands ; Blue Wyke. Leck- 

 enby Collection. 



T. granulans, W. H. Hudleston, G. M. dec. 2, viii (1881), pi. iii, 

 f. 11 a, b, p. 57. Coralline Oolite; Malton. Leckenby Col- 

 lection. 



T.? leckenbyi, J. Morris and J. Lycett, Mollusca Gt. Ool. part i 

 (1850), pi. XV, f. 21, 21 a, p. 115. W. H. Hudleston, G. M. 

 dec. 3, II (1885), pi. iii, f. 7, p. 126. Scarborough Limestone; 

 Cloughton Wyke, near Scarborough. Leckenby Collection. 



T. (Gibbula) levistriatus, H. G. Seeley, A. M. N. H. ser. 3, vii 

 (1861), pi. xi, f. 16, p. 290. Cambridge Qreensand; Cambridge. 



T. monilitectus, Phillips, var. B, W. H. Hudleston, G. M. dec. 3, 

 II (1885), p. 122. Cornhrash ; Scarborough. Leckenby Col- 

 lection. 



T. moorei, F. McCoy, A. M. N. H. ser. 2, vii (1851), p. 50, and 

 Contrib. Brit. Pal. (1854), p. 185, and Brit. Palffioz. Foss. 

 (1852), pi. i L, f. 18, 18 a, p. 297. May Hill Beds; Dalquhar- 

 ran, Ayrshire. 



T. reticidatus, v. Pleurotomaria reticulata. 



T. scarburgensis, W. H. Hudleston, G. M. dec. 3, ii (1885), pi. iii, 

 f. 2, 2 a, p. 123. Combrash; Scarborough. Leckenby Col- 

 lection. 



