﻿PLATE XXXVII. 



Fig. 



1, 2. Trigonia producta, Lyc. Also PI. XIII, figs. 1, 2, 3, 4. Inferior Oolite, Hook 

 Norton, Oxon. (Page 60.) Coll., Royal School of 

 Mines. 



3, paucicosta, Lyc. Kelloway Rock, Scarborough. See also PI. XI, figs. 8, 



9, and PI. XVI, fig. 7. (Page 57.) My collection. 



4, 4 a. „ pennata, Sow. 4 a, magnified. Also PI. XXIV, figs. 4, 5. Chloritic 



Marl, South Devon. (Page 133.) Coll. W. Vicary, Esq. 



5, 5 a. „ nodosa, Sow. Specimen less developed than the figures upon Pis. 



XXIV and XXV. (Page 106.) Neocomian formation, 

 Atherfield. My collection. 



6, „ „ Young specimen ; the costae had not acquired nodes. Neoco- 



mian formation, Atherfield. My collection. 



7, 8. „ angulata, Sow. Specimens of advanced stages of growth. See also 



PI. XIV, figs. 5, 6. Inferior Oolite, near Stroud. (Page 

 54.) Coll. E. Witchell, Esq. 



9. „ „ Young specimen having costse without angularity. Inf. 



Oolite, Stroud. Coll. E. Witchell, Esq. 



10. ,, formosa, var. Inferior Oolite, Bradford Abbas. See also PI. V, figs. 



4, 5, 6. (Page 35.) My collection. 



