116 GASTEROPODA. 



Trochus caelatulus, F. McCoy, A. M. N. H. ser. 2, vn (1851), 

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

 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. xxxm 

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

 Browne, Q. J. G. S. xxxi (1875), pi. xiv, f. 79, p. 292. 

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

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

 Cambridge Green sand; Cambridge. 



T. concavity, v. Trochus ziziphinus. 

 T. constrictus, v. Holopea striatella. 



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

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

 enby Collection. 



T. granularis, W. H. Hudleston, G. M. dec. 2, vm (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, vn 

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



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

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

 lection. 



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

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

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

 ran, Ayrshire. 



T. reticulatus, v. Pleurotomaria reticulata. 



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

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

 lection. 



