﻿PLATE XXVIII. 



Fig. 



1, 2. Iriffonia spinosa var. subovata, Lyc. Chloritic Sands, Warminster. 



See also PI. XXIII, fig. 10. (Page 136.) 

 My collection. 



3, „ sulcataria, Lam. Pebble bed, Haldon. See also PI. XXVI, 



fig. 3. (Page 135.) Coll. W. Vicary, Esq. 



4, 4 a. „ Vkaryana, Lyc. Portion of the surface magnified. See 



also PI. XXV, figs. 8, 9. Pebble bed, 

 Haldon. (Page 141.) Coll. VV. Vicary, Esq. 



5, 5 a. „ aliformis, Park. Also PI. XXV, figs. 3, 3 a, 4, 4 a. Green- 



sand, .Blackdown. (Page 116.) Coll. W. 

 Vicary, Esq. 



6, 6 a, 9, 10. ,, e-xcentrica, Park. Specimens exhibiting the change from 



T. sinuata to T. excentrica. Greensand, 

 Blackdown. (Page 94.) Coll. W. Vicary, Esq. 



7, Tealbyensis, Lyc. Middle Neocomian Formation, Tealby. 



(Page 114.) Woodwardian Museum, Cam- 

 bridge. 



dcedalcea, Park. Inner surface. See also PI. XXII, figs. 



7, 8, and PI. XXIII, figs. 2, 3. (Page 100.) 

 Greensand, Blackdown. My cabinet. 



