32 ECHINOIDEA. 



Echinocyphus impressus (Seeley). Cyphosomai. impressa, 

 H. G. Seeley, A. M. N. H. ser. 3, viii (1861), p. 18. Cambridge 

 Greensand; Cambridge. 



Echinus diademata, v. Stomechinus germinans. 



E. petallatus, v. Stomechinus gyratus. 



Galeropygus agariciformis (Forbes). Pygaster sublwvis, F. 



McCoy, A. M. N. H. ser. 2, ii (1848), p. 413, and Contrib. 



Brit. Pal. (1854), p. 61. Inferior Oolite ; Leckhampton. 

 Groniophorus lunatus, Agassiz, var. minutus, H. G. Seeley, 



A. M. N. H. ser. 3, viii (1861), p. 17. Cambridge Greensand ; 



Cambridge. Presented by J. Carter, Esq., F.G.S. 

 Hemiaster m'coyi, H. G. Seeley, A. M. N. H. ser. 3, viii (1861), 



p. 16. Cambridge Greensand; Cambridge. 

 Hemicidaris confluens, v. Acrosalenia sp. 



Hemicidaris minor, Agassiz. Acrosalenia rarispina, F. McCoy, 



A. M. N. H. ser. 2, ii (1848), p. 411, and Contrib. Brit. Pal. 



(1854), p. 59. Great Oolite; Minchinhampton? 

 Holaster suborbicularis (Brongniart). Cardiaster suborbicularis, 



H. G. Seeley, A. M. N. H. ser. 3, xvii (1866), p. 179. Red 



Chalk; Hunstanton. 



Holectypus hemisphaericus (Agassiz). Discoidea marginalis, 

 F. McCoy, A. M. N. H. ser. 2, ii (1848), p. 413, and Contrib. 

 Brit. Pal. (1854), p. 60. Inferior Oolite; Broadwinsor, Dorset. 



Nucleolites aequalis, F. McCoy, A. M. N. H. ser. 2, ii (1848), 

 p. 416, and Contrib. Brit. Pal. (1854), p. 64. Inferior Oolite; 

 Castle Ashby. 



N. clunicularis (Phillips). Nucleolites pyramidalis, F. McCoy, 

 A. M. N. H. ser. 2, ii (1848), p. 416, and Contrib. Brit. Pal. 

 (1854), p. 63. T. Wright, Brit. Foss. Echin. Oolit. (1859), 

 p. 335. Coral Rag ; Weymouth. 



N. planulatus, F. McCoy, A. M. N. H. ser. 2, ii (1848), p. 415, 

 and Contrib. Brit. Pal. (1854), p. 63. Great Oolite; Minchin- 

 hampton. 



N. pyramidalis, v. Nucleolites clunicularis. 



Palseechinus gigas, McCoy, W. Keeping, Q. J. G. S. xxxn 



