﻿PLATE XXXVII. 

 Fig. 

 1, r^. Triffonia producfa, Lye. Also PI. XIII, figs. 1, 2, 3, 4. Inferior Oolite, Hook 



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



Mines. 



3, ,, paucicosia, Lye. Kello way 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 r/. ,, nodosa. Sow. Specimen less developed than the figures upon Pis. 



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

 Ather field. My collection. 



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



mian formation, Atherfield. My collection. 



7, 8. ,, nnc/ulata. 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 costa? without angularity. Inf. 



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



10. „ Jhriiiosa, var. Inferior Oolite, Bradford Abbas. See also PL V, figs. 



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



