TRIGONIA. 87 



? 1885. Trigonia spinosa, F. Notlimj. Die Fauna d. baltisch. Ceiioinan. (Palseout. 



Abhaudl., vol. ii), p. 27, pi. iv, figs. 16, 17. 



? Non 1837. — — F. Bujardin. Mc'in. Soc. gcol. France, vol. ii, p. 224. 



— 1844. — — A. d'OrhUjinj. Pal. Franc. Terr. Crct., vol. iii, p. 154, 



pi. ccxcvii, figs. 1 — 5. 



— 1850. — — d'Orhhjiuj. Prodr. de Pal., vol. ii, p. 161. 



Types. — The type, from Blackdown, and the specimen figured by Sowerby, are 

 in the British Museum. 



The originals of Lycett's pi. xxiii, fig. 10, and pi. xxviii, fig. 1, 2, are in the 

 Museum of Practical Geology ; of pi. xxiv, fig. 8, in the Wiltshire Collection, Wood- 

 wardian Museum ; of pi. xxiv, fig. 9, in the Williamson Collection, Manchester 

 Museum. 



Distribution. — Greensand of Blackdown. 



Teigonia Vic'aryana, Lycett, 1875. 



1844. Teigonia spinosa, A. d'Orbirjny. Pal. Frau^. Terr. Crt't., vol. iii, p. 154, 



pi. ccxcvii, figs. 1 — 5 (non T. spinosa, Park.). 

 1850. — — d'Orbigny. Prodr. de Pal., vol. ii, p. 161. 



1867. — — E. Gtieranger. Album Pak'ont. de la Sartlie, p. 14, 



pi. xviii, fig. 2. 

 1875. — Vicaeyana, Lycett, -p^. 141, 203, pi. xxiii, fig. 7; pi. xxv, figs. 



8, 9 ; pi. xxviii, fig. 4; pi. xl, figs. 3, 4. 

 ? 1882. — pseudospinosa, P. de Loriol. G-ault de Cosne (Mem. Soc. Pal. 



Suisse, vol. ix), p. 99, pi. xii, figs. 12 

 —14. 

 1896. — Vicaeyana, A. J. Julces-Broivne and W. Hill. Quart. Journ. 



G-eol. Soc, -^ol. Iii, p. 154. 



Bemarhs. — This is relatively higher and shorter than T. Archiaciana, d'Orbigny, 

 T. upwarensis,ljjceii, and T. o?-/;(r^(f, d'Orbigny, The costellas on the area are more 

 oblique to the carina than in T. iqraiareKsis. The cost« are more numerous than 

 in T. oriuita. 



T. Lndovicce, Briart and Cornet,^ from Bracquegnies, is more produced pos- 

 teriorly, it has fewer ribs anteriorly, and closer ribs posteriorly, than T. Vicaryana. 



De Loriol figures a form from the Gault of Cosne, which he regards as T. 

 spinosa, d'Orbigny, non Sowerby, and names T. pseudospinosa, but it seems to 

 possess fewer and stronger costellas on the area than T. spinosa, d'Orljigny, which 

 is here considered to be identical with 2\ Vicaryana, Lycett. 



Types. — From the Greensand near Sidmouth and Haldon ; in the Museum of 

 Practical Geology (Lycett's pi. xxv, fig. 8), and Mr. Vicary's collection (fig. 9). 

 ' ' Descript. de la Meule de Bracquegnies ' (1868), p. 65, pl. vi, figs. 6, 7. 



